It all began yesterday when I decided to play LotR Conquest. I began to play since I hadn't had played in a while and at first it was running as it should have. But then it began to have these wierd and frequent periods of time where the entire game would just slow down and lag severely. I didn't think much of it and assumed it was a problem with the game and left it alone.
Today I got to play another game and the same thing happens. It'll run fine for a few minutes then after that it will have like 10 minutes worth of pure slow down. The framerate goes down the drain and it lags so bad I can't play. I became pretty angry and tried another game. Exact same thing happens. No matter what game I play it will, every few minutes, slow down to the point where you can't do anything. I tried the options, I tried many things. But no matter how I tinker with the games they still refuse to give up on this random lag. Heck, I restarted my computer.
I've had this computer for more than two years and it has worked just fine up until now. I've never encountered a problem similar to this ever before. Yesterday was when it began and I have no idea why. Does anybody have any idea what the problem is and how I can fix it? My computer is an HP Pavilion a6300f PC and it's hardware definately meets the requirements of all these games. So why do they refuse to play properly now?