Splinter Cell Conviction Running Slow?

this is because of the poor coding inside the game itself,there's not much you can do,even my alienware lags at times.Just try to defrag your disk.But the truth is a G-210 is not much.My best bet is try to lower the resolution but keep all the effects and eye candy at max,use AA if you must but your card's power is limited,maybe overclocking may help