Double make sure Vsync or adaptive Vsync is not enabled-the 60fps mark is way too specific which makes me believe, as RobCrezz said, that you do have a 60hz monitor and some type of VSync is active.
Double make sure Vsync or adaptive Vsync is not enabled-the 60fps mark is way too specific which makes me believe, as RobCrezz said, that you do have a 60hz monitor and some type of VSync is active.