Graphics problem

[brandobras]

Hi, I have a problem with graphics with my new pc.
I had same game in older pc and I had no problem at all, now I have a new one and I'm experiencing graphical issues... game is not slow but sluggish, graphics while moving do not seem to load properly.
I have now a Geforce 660 and don't have problems with other games, just the King's bounty serie

Intel core i5 3.30ghz, 8gb ram, geforce 660, windows 7 32bit

On top left of the screen there some writing such as HyperFormance universal.gpu.virtualization, it does not appear in any other game.

Help appreciated thanks in advance!!!