Mixed Reality - Volume or Immersive Space application crashed with heavy model(1.5M trias) in the scene

Hello Guys,

I am developing a Mixed Reality - Volume or Immersive Space application with a AR Kit for floor detection and a 3D model placement.
App runs fine with a simple model 500k triangles. But, it crashes in the Vision Pro if I use 3D model with more than a 1M triangles with 20-30k children objects.

Has anyone faced similar issue , or were able to load model with 1.5M or 2M triangles with ARKit for floor detection ?