Found a way to increase performance on my rig, it might help you too, Nvidia Only

Taa
Well actually what i mean is taa give best result and kicks in when primary scaling slider is set 100 and up
So if i lower secondary scaling in usercfg.opt to make down scale on my screen setting it give some
Headroom for upscale taa setting.
I fly with these settings for a long time now and these smooth the sim specially on lowercards i find