Another thing to consider is CPU Temp.

CPUs will throttle thier performance in order to prevent themselves from turning into little molten pools of glass.

I replaced the default CPU Fan that came with my processor with a 55 dollar water cooling system from Corsair. I went from borderline meltdown, to being well within the green for my CPU's Temp range . This resulted in a marked increase in the computer's performance.

You don't need to get a huge system that can be used to cool a VW Bug. Just a cheap, little, water coolling system is all you'll need to help your computer.

Hope this Helps.