Hmm...well just because you reformatted about a month ago doesn't change the probability of having spyware or malware at all...Tracking cookies, worms, viruses, trojans, spyware,adware.root-kits...they all severely slow down you system and cause major performance degrade. You need to right program to detect all of that and eliminate it. If I were you, I would download two softwares called "Malwarebytes Anti-Malware" and download "A-Squared". Download those two programs, install them, update them completley, then boot into safe mode, scan completley with both programs (1 at a time ofcourse), after thats done, stay in safe mode and give your drive a nice good defragmentation. I bet those programs will catch something bad in your system, they are just too good.
-Then when that is done download a program called "System Spec" google that and download it, its a simple .exe file. Open it and it gives extremely specific specs of your system. Give me exact specs of your operating system (company, version, service-pack...32-64-bits...etc EVERYTHING), and give me all the hardware specs you can find in it
-Plus dont be upset, your system isn't really that hot
-And bumping a thread in 7minutes LOL, usually it takes hours to days for responses so be patient with that.