big problem with thaw

[Baker]

hi. I have a problem with Thaw. when I had windows xp on the computer everything was ok, but when I switched to Windows 7 when the game appeared in a small delay due to the keyboard. For example, when jumping on the grind and I fall to the ground board after releasing a key figure flies a little farther than it should. This also may be due to my last computer upgrade. My config:
Gigabyte GA-MA770T-ES3
AMD Phenom II x4 955 Black Edition @ 4Ghz @ 1.45v
MSI NGTX 560TI HAWK 1gb GDDR5 @1004/1150
4GB 1333MHz Kingston DDR3 CL9 BOX
Samsung 500GB
Chieftec GPS-500AB-A 500W
SilentiumPC FORTIS HE1225

do you have any ideas? I tried also to run the game in compatibility mode for windows xp service pack 1 / 2 but that did not help.

sry for english, ~google translate