How exactly is the SceneMode.PERFORMANCE_SCENE2D more performant than SCENE_3D

From what I can tell, the only difference is that this mode is a 3D scene with these properties set to false:

```
        this.screenSpaceCameraController.enableTilt = false;
        this.screenSpaceCameraController.enableRotate = false;
        this.screenSpaceCameraController.enableLook = false;
```

Is this the only difference?