Slow gaming performance with mid-high specs

[Aes321]

So this laptop is actually only one month old. It was running completely fine until today. When I play heavy games like Valorant or CS:GO, it would only run fine into up like 5 mins and then the fps will drop and the whole device will go slow until I restart. The slow performance will go away when I restart but will come back if I play heavy games. I tried checking Task Manager but it nothing goes over 40%. I also tried defragging the device but it did not work.

Specs:
I5 9th gen
GTX 1650
12 GB Ram

 

[Macboatmaster]

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