Asus eah5770

[WinXXXXXX9]

Hello,i have such a question:wgy is my asus eah 5770 brand new lagging? a little bit but it iritates the eye.can you please tell me whats the prob>(the latest drivers, 420 W PSU,)

 

[WinXXXXXX9]

i forgot to mention that the vid card is cucore.