Unity 2019.3 LWRP strange Performance Issue on android

I am trying to create my next mobile game but I am simply not able to fix the fps issues with the game. It just jumps from constant 60 to 50 and then it stays at 50. I am not doing absolutely not$$anonymous$$ng it the game w$$anonymous$$le t$$anonymous$$s happens. Just standing and giving some basic input (there are no effects introduced or new elements).

The main issue is that my CPU is waiting on GPU, at least from what I understood. T$$anonymous$$s is expressed with Gfx.WaitForPresentOnGfxThread. But when I open the profiler to see what it is going on I only see a green bar in the render thread without any kind of name or specification. I am not really sure what t$$anonymous$$s means and I can fix it.

I have disabled multithreaded rending in the player settings and also enabled grap$$anonymous$$cs jobs.

Does anyone knows how to fix t$$anonymous$$s or what the issue is?