thanks 
not specialy all presets on ULTRA / Vsync OFF/ my game is running perfectly just little bit stuttering since last update but it will be corrected
What’s your rtx 3080 brand ? mine is EVGA and i overclocked it with precision X1 i won 4-5 fps
ps: in your nvidia control panel you must turn off MFAA and FXAA 
as on this thread : Major FPS drop after Patch 5 - Limited by RdrThread - Fix Identified - Turn off MFAA in NVIDIA - #89 by Ir0nManFlight