I play CS:GO and to play CS:GO on 1280x960 stretched resolution i need to create a custom resolution. So I created a 1280x960 144hz resolution on AMD Adrenaline Software. But when I use the custom resolution alt+tabbing becomes slower. In any other non- custom resolution alt tab is instant. Do you know any solutions?
PS: I'm not a native english speaker so I may have some grammar mistakes.