diff --git a/CHANGES.md b/CHANGES.md
index a8deaca3237c..d2dce06dee02 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -10,6 +10,7 @@
 - Fixed error when there are duplicated points in polygon/polyline geometries with `ArcType.RHUMB` [#12460](https://github.com/CesiumGS/cesium/pull/12460)
 - Fixed ground atmosphere shaders in 3D orthographic mode [#12484](https://github.com/CesiumGS/cesium/pull/12484)
 - Fixed zoom in 3D orthographic mode [#12483](https://github.com/CesiumGS/cesium/pull/12483)
+- Fixed z-fighting and performance issues in 2D infinite scroll mode [#12488](https://github.com/CesiumGS/cesium/pull/12488)
 
 ## 1.126 - 2025-02-03
 
diff --git a/packages/engine/Source/Scene/Scene.js b/packages/engine/Source/Scene/Scene.js
index e438fdf87e32..1887e135ca6d 100644
--- a/packages/engine/Source/Scene/Scene.js
+++ b/packages/engine/Source/Scene/Scene.js
@@ -3310,8 +3310,9 @@ function execute2DViewportCommands(scene, passState) {
   }
 
   camera._setTransform(transform);
-  Cartesian3.clone(position, camera.position);
-  camera.frustum = frustum.clone();
+  camera.position.x = position.x;
+  camera.position.y = position.y;
+  camera.frustum = frustum;
   passState.viewport = originalViewport;
 }