Very low fps after few games

After few games my fps goes from 90-110 to 50 no matter what map

Spec

GTX 1660s

i5 10400f

16gb

is that laptop? cause this seems like thermal throttling… or memory leak.

i would recommend downloading occt and stress test the computer. OCBASE/OCCT : Free, all-in-one stability, stress test, benchmark and monitoring tool for your PC