diff --git a/apps/openmw/mwbase/world.hpp b/apps/openmw/mwbase/world.hpp
index 4b9467e503..217e6d3677 100644
--- a/apps/openmw/mwbase/world.hpp
+++ b/apps/openmw/mwbase/world.hpp
@@ -134,7 +134,6 @@ namespace MWBase
 
             virtual MWWorld::Player& getPlayer() = 0;
             virtual MWWorld::Ptr getPlayerPtr() = 0;
-            virtual MWWorld::ConstPtr getPlayerConstPtr() const = 0;
 
             virtual const MWWorld::ESMStore& getStore() const = 0;
 
@@ -616,9 +615,6 @@ namespace MWBase
             virtual void removeActorPath(const MWWorld::ConstPtr& actor) const = 0;
 
             virtual void setNavMeshNumberToRender(const std::size_t value) = 0;
-
-            /// Return physical half extents of the given actor to be used in pathfinding
-            virtual osg::Vec3f getPathfindingHalfExtents(const MWWorld::ConstPtr& actor) const = 0;
     };
 }
 
diff --git a/apps/openmw/mwmechanics/aipackage.cpp b/apps/openmw/mwmechanics/aipackage.cpp
index 0fa92c3016..91449498da 100644
--- a/apps/openmw/mwmechanics/aipackage.cpp
+++ b/apps/openmw/mwmechanics/aipackage.cpp
@@ -135,9 +135,9 @@ bool MWMechanics::AiPackage::pathTo(const MWWorld::Ptr& actor, const osg::Vec3f&
         {
             if (wasShortcutting || doesPathNeedRecalc(dest, actor.getCell())) // if need to rebuild path
             {
-                const auto halfExtents = world->getPathfindingHalfExtents(actor);
+                const osg::Vec3f playerHalfExtents = world->getHalfExtents(getPlayer()); // Using player half extents for better performance
                 mPathFinder.buildPath(actor, position, dest, actor.getCell(), getPathGridGraph(actor.getCell()),
-                    halfExtents, getNavigatorFlags(actor));
+                    playerHalfExtents, getNavigatorFlags(actor));
                 mRotateOnTheRunChecks = 3;
 
                 // give priority to go directly on target if there is minimal opportunity
diff --git a/apps/openmw/mwmechanics/aiwander.cpp b/apps/openmw/mwmechanics/aiwander.cpp
index 405f36767e..05465c6b05 100644
--- a/apps/openmw/mwmechanics/aiwander.cpp
+++ b/apps/openmw/mwmechanics/aiwander.cpp
@@ -155,9 +155,9 @@ namespace MWMechanics
             }
             else
             {
-                const osg::Vec3f halfExtents = MWBase::Environment::get().getWorld()->getPathfindingHalfExtents(actor);
+                const osg::Vec3f playerHalfExtents = MWBase::Environment::get().getWorld()->getHalfExtents(getPlayer()); // Using player half extents for better performance
                 mPathFinder.buildPath(actor, pos.asVec3(), mDestination, actor.getCell(),
-                    getPathGridGraph(actor.getCell()), halfExtents, getNavigatorFlags(actor));
+                    getPathGridGraph(actor.getCell()), playerHalfExtents, getNavigatorFlags(actor));
             }
 
             if (mPathFinder.isPathConstructed())
@@ -312,9 +312,10 @@ namespace MWMechanics
             if ((!isWaterCreature && !destinationIsAtWater(actor, mDestination)) ||
                 (isWaterCreature && !destinationThroughGround(currentPosition, mDestination)))
             {
-                const osg::Vec3f halfExtents = MWBase::Environment::get().getWorld()->getPathfindingHalfExtents(actor);
+                // Using player half extents for better performance
+                const osg::Vec3f playerHalfExtents = MWBase::Environment::get().getWorld()->getHalfExtents(getPlayer());
                 mPathFinder.buildPath(actor, currentPosition, mDestination, actor.getCell(),
-                    getPathGridGraph(actor.getCell()), halfExtents, getNavigatorFlags(actor));
+                    getPathGridGraph(actor.getCell()), playerHalfExtents, getNavigatorFlags(actor));
                 mPathFinder.addPointToPath(mDestination);
 
                 if (mPathFinder.isPathConstructed())
diff --git a/apps/openmw/mwphysics/actor.cpp b/apps/openmw/mwphysics/actor.cpp
index 0f8814aca4..632d32c26d 100644
--- a/apps/openmw/mwphysics/actor.cpp
+++ b/apps/openmw/mwphysics/actor.cpp
@@ -201,11 +201,6 @@ osg::Vec3f Actor::getHalfExtents() const
     return osg::componentMultiply(mHalfExtents, mScale);
 }
 
-osg::Vec3f Actor::getOriginalHalfExtents() const
-{
-    return mHalfExtents;
-}
-
 osg::Vec3f Actor::getRenderingHalfExtents() const
 {
     return osg::componentMultiply(mHalfExtents, mRenderingScale);
diff --git a/apps/openmw/mwphysics/actor.hpp b/apps/openmw/mwphysics/actor.hpp
index 8752f7feee..31dd22a221 100644
--- a/apps/openmw/mwphysics/actor.hpp
+++ b/apps/openmw/mwphysics/actor.hpp
@@ -66,11 +66,6 @@ namespace MWPhysics
          */
         osg::Vec3f getHalfExtents() const;
 
-        /**
-         * Returns the half extents of the collision body (not scaled)
-         */
-        osg::Vec3f getOriginalHalfExtents() const;
-
         /**
          * Returns the position of the collision body
          * @note The collision shape's origin is in its center, so the position returned can be described as center of the actor collision box in world space.
diff --git a/apps/openmw/mwphysics/physicssystem.cpp b/apps/openmw/mwphysics/physicssystem.cpp
index e3884afad0..d12f7fe6cb 100644
--- a/apps/openmw/mwphysics/physicssystem.cpp
+++ b/apps/openmw/mwphysics/physicssystem.cpp
@@ -906,14 +906,6 @@ namespace MWPhysics
             return osg::Vec3f();
     }
 
-    osg::Vec3f PhysicsSystem::getOriginalHalfExtents(const MWWorld::ConstPtr &actor) const
-    {
-        if (const Actor* physactor = getActor(actor))
-            return physactor->getOriginalHalfExtents();
-        else
-            return osg::Vec3f();
-    }
-
     osg::Vec3f PhysicsSystem::getRenderingHalfExtents(const MWWorld::ConstPtr &actor) const
     {
         const Actor* physactor = getActor(actor);
diff --git a/apps/openmw/mwphysics/physicssystem.hpp b/apps/openmw/mwphysics/physicssystem.hpp
index 364a59ab1b..76fbcf8c63 100644
--- a/apps/openmw/mwphysics/physicssystem.hpp
+++ b/apps/openmw/mwphysics/physicssystem.hpp
@@ -136,9 +136,6 @@ namespace MWPhysics
             /// Get physical half extents (scaled) of the given actor.
             osg::Vec3f getHalfExtents(const MWWorld::ConstPtr& actor) const;
 
-            /// Get physical half extents (not scaled) of the given actor.
-            osg::Vec3f getOriginalHalfExtents(const MWWorld::ConstPtr& actor) const;
-
             /// @see MWPhysics::Actor::getRenderingHalfExtents
             osg::Vec3f getRenderingHalfExtents(const MWWorld::ConstPtr& actor) const;
 
diff --git a/apps/openmw/mwworld/player.cpp b/apps/openmw/mwworld/player.cpp
index 9e2d9d6ff4..f152b2cae3 100644
--- a/apps/openmw/mwworld/player.cpp
+++ b/apps/openmw/mwworld/player.cpp
@@ -122,12 +122,6 @@ namespace MWWorld
         return ptr;
     }
 
-    MWWorld::ConstPtr Player::getConstPlayer() const
-    {
-        MWWorld::ConstPtr ptr (&mPlayer, mCellStore);
-        return ptr;
-    }
-
     void Player::setBirthSign (const std::string &sign)
     {
         mSign = sign;
diff --git a/apps/openmw/mwworld/player.hpp b/apps/openmw/mwworld/player.hpp
index 96ed20adfc..e2632f2104 100644
--- a/apps/openmw/mwworld/player.hpp
+++ b/apps/openmw/mwworld/player.hpp
@@ -27,7 +27,6 @@ namespace Loading
 namespace MWWorld
 {
     class CellStore;
-    class ConstPtr;
 
     /// \brief NPC object representing the player and additional player data
     class Player
@@ -82,7 +81,6 @@ namespace MWWorld
         void setCell (MWWorld::CellStore *cellStore);
 
         MWWorld::Ptr getPlayer();
-        MWWorld::ConstPtr getConstPlayer() const;
 
         void setBirthSign(const std::string &sign);
         const std::string &getBirthSign() const;
diff --git a/apps/openmw/mwworld/scene.cpp b/apps/openmw/mwworld/scene.cpp
index d06034e1dc..1e84188935 100644
--- a/apps/openmw/mwworld/scene.cpp
+++ b/apps/openmw/mwworld/scene.cpp
@@ -172,9 +172,12 @@ namespace
                 );
             }
         }
-        else if (physics.getActor(ptr))
+        else if (const auto actor = physics.getActor(ptr))
         {
-            navigator.addAgent(MWBase::Environment::get().getWorld()->getPathfindingHalfExtents(ptr));
+            const auto halfExtents = ptr.getCell()->isExterior()
+                ? physics.getHalfExtents(MWBase::Environment::get().getWorld()->getPlayerPtr())
+                : actor->getHalfExtents();
+            navigator.addAgent(halfExtents);
         }
     }
 
@@ -334,14 +337,15 @@ namespace MWWorld
         ListAndResetObjectsVisitor visitor;
 
         (*iter)->forEach<ListAndResetObjectsVisitor>(visitor);
-        const auto world = MWBase::Environment::get().getWorld();
+        const auto player = MWBase::Environment::get().getWorld()->getPlayerPtr();
+        const auto playerHalfExtents = mPhysics->getHalfExtents(player);
         for (const auto& ptr : visitor.mObjects)
         {
             if (const auto object = mPhysics->getObject(ptr))
                 navigator->removeObject(DetourNavigator::ObjectId(object));
             else if (const auto actor = mPhysics->getActor(ptr))
             {
-                navigator->removeAgent(world->getPathfindingHalfExtents(ptr));
+                navigator->removeAgent(ptr.getCell()->isExterior() ? playerHalfExtents : actor->getHalfExtents());
                 mRendering.removeActorPath(ptr);
             }
             mPhysics->remove(ptr);
@@ -368,7 +372,6 @@ namespace MWWorld
         if ((*iter)->getCell()->hasWater())
             navigator->removeWater(osg::Vec2i(cellX, cellY));
 
-        const auto player = world->getPlayerPtr();
         navigator->update(player.getRefData().getPosition().asVec3());
 
         MWBase::Environment::get().getMechanicsManager()->drop (*iter);
@@ -812,7 +815,10 @@ namespace MWWorld
         }
         else if (const auto actor = mPhysics->getActor(ptr))
         {
-            navigator->removeAgent(MWBase::Environment::get().getWorld()->getPathfindingHalfExtents(ptr));
+            const auto& halfExtents = ptr.getCell()->isExterior()
+                ? mPhysics->getHalfExtents(MWBase::Environment::get().getWorld()->getPlayerPtr())
+                : actor->getHalfExtents();
+            navigator->removeAgent(halfExtents);
         }
         mPhysics->remove(ptr);
         mRendering.removeObject (ptr);
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index cfec200b2c..502ff8843d 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -1298,9 +1298,6 @@ namespace MWWorld
             {
                 mPhysics->updatePosition(newPtr);
                 mPhysics->updatePtr(ptr, newPtr);
-
-                if (const auto object = mPhysics->getObject(newPtr))
-                    updateNavigatorObject(object);
             }
         }
         if (isPlayer)
@@ -1331,17 +1328,9 @@ namespace MWWorld
 
     void World::scaleObject (const Ptr& ptr, float scale)
     {
-        if (mPhysics->getActor(ptr))
-            mNavigator->removeAgent(getPathfindingHalfExtents(ptr));
-
         ptr.getCellRef().setScale(scale);
 
         mWorldScene->updateObjectScale(ptr);
-
-        if (mPhysics->getActor(ptr))
-            mNavigator->addAgent(getPathfindingHalfExtents(ptr));
-        else if (const auto object = mPhysics->getObject(ptr))
-            mShouldUpdateNavigator = updateNavigatorObject(object) || mShouldUpdateNavigator;
     }
 
     void World::rotateObjectImp (const Ptr& ptr, const osg::Vec3f& rot, bool adjust)
@@ -1381,12 +1370,7 @@ namespace MWWorld
         ptr.getRefData().setPosition(pos);
 
         if(ptr.getRefData().getBaseNode() != 0)
-        {
             mWorldScene->updateObjectRotation(ptr, true);
-
-            if (const auto object = mPhysics->getObject(ptr))
-                updateNavigatorObject(object);
-        }
     }
 
     void World::adjustPosition(const Ptr &ptr, bool force)
@@ -1580,20 +1564,19 @@ namespace MWWorld
 
     void World::updateNavigator()
     {
+        bool updated = false;
+
         mPhysics->forEachAnimatedObject([&] (const MWPhysics::Object* object)
         {
-            mShouldUpdateNavigator = updateNavigatorObject(object) || mShouldUpdateNavigator;
+            updated = updateNavigatorObject(object) || updated;
         });
 
         for (const auto& door : mDoorStates)
             if (const auto object = mPhysics->getObject(door.first))
-                mShouldUpdateNavigator = updateNavigatorObject(object) || mShouldUpdateNavigator;
+                updated = updateNavigatorObject(object) || updated;
 
-        if (mShouldUpdateNavigator)
-        {
+        if (updated)
             mNavigator->update(getPlayerPtr().getRefData().getPosition().asVec3());
-            mShouldUpdateNavigator = false;
-        }
     }
 
     bool World::updateNavigatorObject(const MWPhysics::Object* object)
@@ -2425,7 +2408,7 @@ namespace MWWorld
         {
             // Remove the old CharacterController
             MWBase::Environment::get().getMechanicsManager()->remove(getPlayerPtr());
-            mNavigator->removeAgent(getPathfindingHalfExtents(getPlayerConstPtr()));
+            mNavigator->removeAgent(mPhysics->getHalfExtents(getPlayerPtr()));
             mPhysics->remove(getPlayerPtr());
             mRendering->removePlayer(getPlayerPtr());
 
@@ -2460,8 +2443,7 @@ namespace MWWorld
 
         applyLoopingParticles(player);
 
-        mDefaultHalfExtents = mPhysics->getOriginalHalfExtents(getPlayerPtr());
-        mNavigator->addAgent(getPathfindingHalfExtents(getPlayerConstPtr()));
+        mNavigator->addAgent(mPhysics->getHalfExtents(getPlayerPtr()));
     }
 
     World::RestPermitted World::canRest () const
@@ -3436,11 +3418,6 @@ namespace MWWorld
         return mPlayer->getPlayer();
     }
 
-    MWWorld::ConstPtr World::getPlayerConstPtr() const
-    {
-        return mPlayer->getConstPlayer();
-    }
-
     void World::updateDialogueGlobals()
     {
         MWWorld::Ptr player = getPlayerPtr();
@@ -3810,12 +3787,4 @@ namespace MWWorld
         mRendering->setNavMeshNumber(value);
     }
 
-    osg::Vec3f World::getPathfindingHalfExtents(const MWWorld::ConstPtr& actor) const
-    {
-        if (actor.getCell()->isExterior())
-            return mDefaultHalfExtents; // Using default half extents for better performance
-        else
-            return getHalfExtents(actor);
-    }
-
 }
diff --git a/apps/openmw/mwworld/worldimp.hpp b/apps/openmw/mwworld/worldimp.hpp
index 45653ded2e..98e82bb86d 100644
--- a/apps/openmw/mwworld/worldimp.hpp
+++ b/apps/openmw/mwworld/worldimp.hpp
@@ -111,9 +111,6 @@ namespace MWWorld
 
             std::string mUserDataPath;
 
-            osg::Vec3f mDefaultHalfExtents;
-            bool mShouldUpdateNavigator = false;
-
             // not implemented
             World (const World&);
             World& operator= (const World&);
@@ -241,7 +238,6 @@ namespace MWWorld
 
             Player& getPlayer() override;
             MWWorld::Ptr getPlayerPtr() override;
-            MWWorld::ConstPtr getPlayerConstPtr() const override;
 
             const MWWorld::ESMStore& getStore() const override;
 
@@ -721,9 +717,6 @@ namespace MWWorld
             void removeActorPath(const MWWorld::ConstPtr& actor) const override;
 
             void setNavMeshNumberToRender(const std::size_t value) override;
-
-            /// Return physical half extents of the given actor to be used in pathfinding
-            osg::Vec3f getPathfindingHalfExtents(const MWWorld::ConstPtr& actor) const override;
     };
 }
 
diff --git a/apps/openmw_test_suite/detournavigator/recastmeshobject.cpp b/apps/openmw_test_suite/detournavigator/recastmeshobject.cpp
index a3606f8273..9b30cadd7a 100644
--- a/apps/openmw_test_suite/detournavigator/recastmeshobject.cpp
+++ b/apps/openmw_test_suite/detournavigator/recastmeshobject.cpp
@@ -69,11 +69,4 @@ namespace
         object.update(mTransform, AreaType_ground);
         EXPECT_FALSE(object.update(mTransform, AreaType_ground));
     }
-
-    TEST_F(DetourNavigatorRecastMeshObjectTest, update_for_changed_local_scaling_should_return_true)
-    {
-        RecastMeshObject object(mBoxShape, mTransform, AreaType_ground);
-        mBoxShape.setLocalScaling(btVector3(2, 2, 2));
-        EXPECT_TRUE(object.update(mTransform, AreaType_ground));
-    }
 }
diff --git a/components/detournavigator/recastmeshobject.cpp b/components/detournavigator/recastmeshobject.cpp
index aac0b4c3c8..24d3e6b5a8 100644
--- a/components/detournavigator/recastmeshobject.cpp
+++ b/components/detournavigator/recastmeshobject.cpp
@@ -13,7 +13,6 @@ namespace DetourNavigator
         : mShape(shape)
         , mTransform(transform)
         , mAreaType(areaType)
-        , mLocalScaling(shape.getLocalScaling())
         , mChildren(makeChildrenObjects(shape, mAreaType))
     {
     }
@@ -31,11 +30,6 @@ namespace DetourNavigator
             mAreaType = areaType;
             result = true;
         }
-        if (!(mLocalScaling == mShape.get().getLocalScaling()))
-        {
-            mLocalScaling = mShape.get().getLocalScaling();
-            result = true;
-        }
         if (mShape.get().isCompound())
             result = updateCompoundObject(static_cast<const btCompoundShape&>(mShape.get()), mAreaType, mChildren)
                     || result;
diff --git a/components/detournavigator/recastmeshobject.hpp b/components/detournavigator/recastmeshobject.hpp
index f25647ae50..aff4681222 100644
--- a/components/detournavigator/recastmeshobject.hpp
+++ b/components/detournavigator/recastmeshobject.hpp
@@ -39,7 +39,6 @@ namespace DetourNavigator
             std::reference_wrapper<const btCollisionShape> mShape;
             btTransform mTransform;
             AreaType mAreaType;
-            btVector3 mLocalScaling;
             std::vector<RecastMeshObject> mChildren;
 
             static bool updateCompoundObject(const btCompoundShape& shape, const AreaType areaType,