game and music is glitching

[laurenroy4547]

I have sims 3 with expansions, university, late night, world adventures, and lastly island paradise. But now my game has become super glitchy. When on the loading screen everything seems fine, but then the music gets all slow and wonky, and during actual game play the game tales forever to do anything and is super glitchy. I want to buy an expansion online because I thought it might be issues with the disk, but I don't really know what could solve it. 

[roberta591]

@laurenroy4547 Is your computer a pc or mac? IF your computer is a pc please post your computer's dxdiag. thank you