I have a launch PS3 with an upgraded 250GB hard drive. I've had it for 7 years now. Lately after about 5 minutes of playing a game it will become choppy, get slower and slower to the point where it just freezes and I can't use the controller to shut it off. I have to flip the switch off in the back and turn it back on where it will do a file scan because it wasn't shut down properly and restart. After this has been done, I can play any game for as long as I want for the rest of the day with no issues. Next day when I turn my PS3 on, it does the same thing all over again. What in the heck can be causing this? I already cleaned out all the dust from the system and HDD.