Avoid shimmering / flickering effects on Quest 2 /3

I’m trying different scenes on VR, but I always experiment many artifacts…
I’m using multiview: true - antialias:true and preserveDrawingBuffer: true, for the engine, but the final render scene presents always many shimmer effects along the corner of the objects or along the edges of the meshes…
The scene presents many shimmering and flickering areas, very annoing…
What can I do to avoid this effects?

Here an example with a grass field (Anyone can experiment the annoynig effect with a Oculus Quest or similar?):

https://www.topspinseo.com/BabylonJs/grass/

Thanks to Roland for the code about the shader.
Thanks to Joe_kerr for another code and many hints.

@RaananW any ideas? Not sure if this is a Babylon issue or a Quest limitation or something else…

This is more of a headset limitation than a babylon issue. It is also a very “VR” issue - your head moves constantly. It wouldn’t shimmer if you wouldn’t always make small adjustments to your head’s position. It will probably be the same, if you hold the mouse on the desktop and slightly move it randomly.
I wonder - is it the same if you don’t use multiview?