GMOD 10 Problem Choppiness


I have a strange problem I cannot seem to solve. Ive been playing gmod for years and I just got a new computer and I am having a problem. I bought a high end laptop and when I play in GMOD using PHX mod walls, the screen becomes choppy, the player walks slow, and the screen shoots from back and forth. It looks like mad lag. I put the video settings down, still there. Minimum settings, no change. I dont know what to do its really bothering me. I never had to problem on my old computers.

Thanks kindley,

new PC Speccies?