FPS drops when using URP rendering

Good day. While developing a project on URP renderer, I encountered the problem of constant FPS drops. Moreover, this does not depend on the scene. On a completely empty scene and on a scene with game objects, the result is the same. In the profiler, these FPS drops are not displayed in any way. They can only be seen directly by eye.

This happens exactly on the URP renderer, even in the compiled game. I’ve never seen anything like this on a built-in render.

I have attached the project settings and links to the video where you can see these FPS drops.









urp_sett_9

https://www.youtube.com/watch?v=VMCUmkA6Jkc
https://www.youtube.com/watch?v=Vs2HSidp_MA

Unity version: 2021.3.9f1
What could be the problem?

URP significantly enhances the quality of your graphics beyond what the Built-In Render Pipeline can offer. It also improves the quality of all material shaders. However, if you are using Post-Processing, it may decrease your FPS. To overcome this issue, you can use occlusion culling, backed light, and downscale some high-quality textures and post-processing effects to gain more FPS.