Gaming Laptop suddenly Slowed down

[sgr41]

I have an Asus Zephyrus M GM501. Today the display turned off all of a sudden but then it restarted and now all games are lagging. For eg i was able to play fortnite at 80-100 fps but now its 15-20 all of a sudden. Any guesses on what might the problem be. I tried windows System restore but didn't work.

 

[vapour]

check cpu/gpu temp using hwinfo/msi afterburner.