2020 Improve your game experience – RTSS, or the single most important program for gaming
https://www.youtube.com/watch?v=5qjlyvssikU
In order to use Scanline Sync in RivaTuner, the framerate limit must first be set to 0, since the two functions are mutually exclusive. Don’t worry, as this won’t literally set your frames to 0 – it just disables the FPS capping function so Scanline Sync can be used.