Laggy planetary battles

[Atman]

Hey!

I was waiting soo long for SR2 HD, bought it the day it was released. Played a little but did not have enough time. Picked up again yesterday, all was fine except plannetary battles :/ Strange bleached colors, laggy, unresponsive and blurred text. Turned off most of graphics options, without results. Never had this problems with reboot and hd in last year, screen was crisp without any slowdowns. hALP!

things that changed from last year: win 8.1 (from 7) and latest ati drivers.