il 2 sturmovik: Cliffs of dover (low fps)

[Aty2]

my configuration:

asus p5nd
Intel Core 2 Duo E7300 2.66 GHz
4GB ram 833mhz
2 Nvidia 9800 GTX + in SLI

I play very badly, I can not play, is a machine slide, if I put it in 1024 x 768 and all at the lowest (LOW) I can play but still going very slowly

I do not think that is a problem of equipment, the steam in an upgrade without me asking and not if I could be the cause