BuildBruhhttps://blurbusters.com/howto-low-lag-vsync-on/
Follow that guide. If you're using an Nvidia card, use the FAST selection for vsync, and make sure fps_max 75 and mat_vsync 1 is in your autoexec
that's as comprehensive as it gets, but you have to actually follow it. max_fps should be the next highest whole number from whatever you set RTSS at. (59.957 -> 60, 143.925 -> 144, etc.) Most problems people seem to be having with stuttering is probably stemming from not actually using RTSS or not getting a good/consistent # to work with from the ufo refresh test.
I'm not familiar with AMD but either on or fast. No half measures with adaptive or anything similar modes as it makes using RTSS to limit fps useless.