Windows 10: cpu usage suddenly drops

When I play heavy games, although the processor does not have a heat problem,the processor usage drops to around 20% and there is a momentary drop in my games.My system specs:ryzen 5 5600xrx 67002x8 ram

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Sudden drop in cpu usage while gaming

Update : It has gotten worse now I'm getting FPS drops and drop in cpu usage every 2 minutes

It's like the fps is stable at 60 fps for 2 minutes then suddenly drops to 5 fps the I open task manager to see what happened then the CPU usage of NFS Heat drops from 50% to 20% then climbs back to 50-70%

 

CPU usage drops

So I have a Asus laptop, and when i update windows 10 i have random cpu usage drops, like when im playing or doing anything after a few minutes the cpu usage drops to 12%, and then after around 1-2 min it goes up again to normal and the framerates get normal again, but when it drops any game is unplayable. I managed to fix it before by deleting a battery driver and then restarting the computer, but this time this does not work.

Edit: all the tempatures are fine and all the drivers are the newest.

 

Sudden drop in cpu usage while gaming

So I'm trying to play NFS Heat, the game runs fine on about 60 fps for 10 minutes or so but then the fps suddenly drops to like 5-10 for a few seconds and then runs again normally. This happens every 5-10 minute while I'm trying to play. One thing I have noticed in task manager is that the game uses around 70% of CPU and then the game's fps drops and the CPU usage drops to 10% then it rises again to 70-80% then again suddenly drops to 10% and the game's fps also drops. I don't what's the reason for this.

My Specs :-

16 GB DDR4 ram 3200 Mhz

AMD Ryzen 5 5500u

Nvidia GTX 1650 GDDR 5 4 GB

Thank you for taking your time and reading this. (Don't mind my english, not my native)