why my computer running slow

[kesic]

why is my computer(laptop)start overheating and running slaw when i'm playing certain games!!!!

 

[GAM3R_SQU1RR3L]

Please include details. Slow as in framerate? What games make your computer "slow"? Computer Specs?

 

[Maarsch]

Have you checked your vents? Stuffed vents overheat laptops.
Overheated hardware slows down to prevent burning down (sometimes).