NVIDIA Control Panel Settings.
WINDOWS 10 : Right-click the Desktop background and select NVIDIA Control Panel.

If your struggling to find NVIDIA Control Panel it should be located at :

C:\Program Files\NVIDIA Corporation\Control Panel Client\vcplui.exe.

Click Manage 3D Settings.

On the Vertical sync row, click the dropdown arrow and select Off (or try Adaptive first if you wish).

Remember Global Settings tab will over-ride ALL ingame settings for all games and apps. You can click on the Program settings tab, select the game and change the vercial sync settings here. This will only change the setting for that game.