How to improve quest 2 performance

I worked hard on a game for the quest 2 but the renders are terrible. Everywhere you look is annoying with flickering, pixelating in long distance renders, and static. I am using URP and have attached a video. Help me.

Link:
https://drive.google.com/drive/folders/1RXhbWMzh9VsLsyB8Xvo61VKnx73WAujb?usp=sharing

For performance:
Check the profiler and frame debugger to see what causes the low fps

For flickering:
Could there be Z-fighting by any chance?

Hello. I have successfully opened the profiler. How do I use the profiler to solve these problems that I mentioned? Your help is much appreciated.

Unity learn, Google and youtube can help you with figuring out how to use tools