i tested without vsync. the tearing is not noticeable outdoors where you have less than 60 fps. however whenever you go indoors and the fps shoots over 60, you see a ton of unbearable tearing. it doesn't seem to improve performance too much (considering that triple buffering is working correctly). In case triple-buffering is not working correctly (ie fps jumps from 60 to 30 and nowhere in between) then you need to switch to borderless window and back to fullscreen.