Resolved AR Foundation - Camera.WorldToScreenPoint performance

I want to place an image at a point on a screen space overlay canvas at a point where a 3D object is being rendered.
To do this, I am using AR foundation's image tracking to place a prefab in the scene where the image is located. I instantiate the png images onto the canvas using the following:
Declarations:

public GameObject buttonToSpawn;

protected Image buttonImage;

Camera cam;

Assignment and instantiation in the start method:

Code (CSharp):

1. cam = FindObjectOfType<ARSessionOrigin>().camera;
2. buttonImage = Instantiate(buttonToSpawn, uiCanvas.transform).GetComponent<Image>();

Finally, I set the image's position on the canvas using the camera's WorldToScreenPoint:

Code (CSharp):

1. void LateUpdate()
2. {
3.     buttonImage.transform.position = cam.WorldToScreenPoint(transform.position) + new Vector3(0,0,0);
4. }

This method works well in a regular 3D scene (getting the camera a little differently of course), with the icons closely matching the points on the model. In the AR scene, the icons lag behind where the model is placed.
Does anyone know of a solution to improve the performance of tracking a world point to a screen point when using AR Foundation?

Thanks!

 

Anyone?

 

Looks like similar issue I have;
https://forum.unity.com/threads/can...-cycle-as-ar-foundation-and-ar-scene.1252692/

Could you take a look?

Note; using ArCameraManager.frameReceived does not help.

Edit; We used to have world space canvases that just scale with the distance to the camera in order to solve this issue, but sometimes we have a case where its really better to use Screen space canvas and move the transform.