Some tips while running it:
Do a clean reboot, start up SuperPi and then enter TaskManager. Go to the "Processes" tab and end ALL non-essential processes, besides Task Manager and SuperPi. Once you have done that, end explorer.exe and finally end taskmgr.exe. Start the SuperPi run, take a screenshot of it, Hit [ctrl]+[alt]+[del] and under the "Applications" tab click "New Task..." type "explorer", sans quotes. Then hit Ok and it'll start up explorer again. Save your results and then do the above several times until you get a lower time (the times seem to vary with every run).