With the deep profiler I saw that it was the Doozy UI Asset that make it slow. I didn't use it but only some graphics for testing... So I delete everything inside the folder except the graphics folder. With the regular profiler it did'nt tell me that it was from that asset but only tell me that it was the FSMOD.LoadSound that I try to disable in the options or somewhere else because there was no sound except a background music who already play without latency.