@dvlajkovic &
@SatEze
I see SatEze read and post like. Good But PLEASE report your results once you disable Disk cache. I just want to kow if it in fact is a good solution.
Now for those Windows users.
Windows as well of Browsers and many other programs place Search/Indexrs runing in the background. Yes the Inspect anything you hook and have memory!! Spy on you.
Now forget the paranoid. If you believe me, then you know You are competing in the use of your HDD and SDD. So every program running subtract your final speed. You most stop all programs. In fact when I did GPGPU on windows I did have a special program that will STOP many Windows official background apps.