Lagging

[Funman]

Thanks for the help. Also, I've been doing some other research. I think it may have something to do with the switchable graphics, though I'm not sure. Do you think switching to fixed switchable graphics instead of dynamic to support OpenGL would help? I'm just confused about the fact that it used to run perfectly on really high settings but now I can hardly play it. I don't remember changing anything that could cause this.