Occulus quest2 issue

Hi my video is breaking up in occulus quest2. Got stucked at one place for several times. What could be the reason? Is it because of large scene size or,high poly elements have been used in the scene in order to achieve realism in vr?
Pleae check my link below

https://pradnya23.shapespark.com/duplex_2_shapespark/

By got stuck, do you mean that the rendering on Oculus breaks or is there some problem with navigation?

The geometry is large, it has 17 million triangles, and this can be too much for Oculus. You could temporarily simplify the geometry by removing most complex objects to test if this will fix the issue, and if yes replace most complex objects in the scene with lower poly, optimized versions.