As i wrote on the other thread try this. When you are playing press volume button once. I tested this thing with 3 games and i gain 10-12 fps.

N900 600 Mhz cycle 6

Ridge Racer 4: 31 fps normal, 40fps with volume button pressen once
WIp3out 35fps normal, 45fps with the trick!
Diablo 34 fps normal, 42 with trick

this thing make me mad...