Check the cpu power settings. Since its a laptop sometimes the cpu will only be running on 50% power instead of 100% as a power saver mode. Check your highperformance profile in windows, usualy windows calculates it using that particular profile, ensure its on 100%. Usually when its 50% it slows it the clock speed down to 700mhz. Other than that, all i can think of is running another benchmark program and see what it scores there. If it scores high then its problem with windows.