Resolved Unity 2021.3.15f1 URP 12.1.8 bad performance in Android. FPS Drops

Hi. I am test to do a really simple app, is an endless runner 2d very simple, the most of time is 60fps but sometimes has fps drops and I want to know if is a Unity problem or app problem. I try to disable all features, but continue having performance issues.

The problem is Semaphore.WaitForSignal, and the isn't GPU.

CPU PROFILER:


GPU PROFILER:


I tried to disable background, fields, disable destroy the gameobjects, and always have drops, and look the gameplay...
https://youtube.com/shorts/gQgJcZ_BZE4

Someone can explain me how to fix the fps drops please.

 

Ok, is Unity problem, I create a new project with only camera and put only these lines scripts:



And have fps drops to 30 frames:



Why this Unity version is bugged?

I tried the app in Redmi Note 3 Pro, Redmi Note 7, Nothing Phone and Samsung Galaxy A53

 

I tried to create a new project in Unity 2020.3.44f1 and same happens, and I try to enable VSYNC to 1 and the drops happens by VSYNC:


So, Unity can't be used to develop Android apps or a setting is F***ing performance with empty scene

 

I found the solution here:

https://forum.unity.com/threads/performance-issues-on-android-with-almost-empty-scene.1064279/

Thanks Treecrotch.

Go to Project Settings->Player->Resolution and Presentation and disable "optimize frame pacing", Unity please disable this setting by default