Lagging

[Funman]

Hey, I have a laptop with integrated graphics (I think) BUT it allows you to switch to "high-performance" mode. While in this mode Amnesia literally runs perfectly, no lagging or problems at all, and I was able to complete the game.


The problem is that for some reason recently Amnesia (and all other games) have started to run horribly, with a ton of lag, so it's really not even fun to play anymore. This has been going on for a while now and since I haven't been able to figure it out, maybe one of you can help. I figure it's some unnecessary program that's causing it, but I don't know which one.

Thanks in advance for any help.