Unity profiler Gfx.WaitForPresentOnGfxThread

Hi, I am making simple 2D platformer game for Android, but I am getting poor performances on older mobile devices like Xiaomi Redmi note 3.
I have no clue what to do with it. If someone do know please informe me about solution.
Profiler stats:


The only thing i noticed in profiler is Gfx.WaitForPresentOnGfxThread

Anyone please ? Literally have zero clue.

I know its been a while, but i have the same problem. Did you happen to fix it?