I play various PC games (CS: GO / AC / BF / COD / FC4, etc.) and I have to say to gamble this monitor is just perfect. Before that I had a Asus with 60Hz and 1 ms. The difference is like night and day.
I some games such as FC4 I could not adjust the 144Hz. For this I had about my Nvidia software under the tab Display -> Change resolution -> resolution: "PC" 1920x1080 144Hz instead of "Ultra-HD, HD, SD" (because you have no way ... Whether it is cable to the DP? You may indeed be otherwise operate via DVI)