All games have low fps on ACER AN515-74 the game froze and dropped drastically fps

Antikquie

Bought the laptop about six months ago, all games were great! The same cyberpunk 2077 on medium at 170 fps. Recently, play DayZ, everything was fine for the first 5 minutes, and then the game froze and dropped drastically fps, and in all subsequent games (Elden Ring, Subnautica) was a little fps, very strange that on any settings in Subnautica have fps around 30-40. Nitrosense configured, high performance has been standing for a long time, computer checked for viruses and reinstalled Windows system. But the problems did not go away, checked for trottling - it is there, but not big, after I disconnected it from the charge it disappeared at all, I thought it was the charge... but no, I have two laptops and the second battery pack it reacts the same. Now the trottling is gone altogether, I cleaned the computer but the problems are still the same, please help, what to do? THIS IS VERY SAD...
Intel I5-11400H
SSD 500
NVIDIA GeForce RTX 3050 ti

[Edited the thread to add issue detail]

Antikquie

The problem reappeared...