I shall give this a try, thanks a lot.Cap FPS in-game to 163 if it has an in game option. If a game doesn't have an option for FPS cap then use RivaTuner Statistics server to cap at 163
Enable v-sync on for all games in Nvidia Control Panel - disable v-sync on all in game settings
Ensure Freesync/G-Sync is on
What this does. 163 FPS cap stops the framerate overshooting and hitting v-sync. Freesync on eliminates any tearing. V-sync foreced on in Nvidia control panel reduces overall input latency if you exceed your frame cap. Essentially v-sync takes over when you are not in the Freesync/G-Sync range (which is very wide for this monitor 48-165 Hz)