Gmod 13 shuts down my pc every 5-10 minutes of playing

Hello,
Recently I have been unable to play gmod 13 for more than 10 minutes without the game shutting down my computer due to overheating. The first few times I’ve played Gmod 13, I could play for hours on end. Now every 5 minutes the game over works my computer. I have the latest DirectX, Vsync on, anti aliasing off, antiscop filtering off, and the field of view down to 75. I do keep my computer well ventilated and i have been able to play other games with higher graphics, just Garrysmod is the only game i cannot play. Any help would be greatly appreciated. Thanks!

I know this doesn’t help much, but a bigger Field of Vision actually decreases lag.

Alright I’ll give it a shot. Thanks :downs: