FPS lagg

So I recently restarted my computer to fabric conditions due to frame lagg I experienced whilst playing. It was all fine before, but then I downloaded a minecraft file and when I went back to crossfire, it all went down from there. Basically every 5 second I get a massive FPS drop from 80 to 30 and it makes the mouse or whatever impossible to control. I then tried to delete the minecraft file that I downloaded but it didn't work. I tried to reinstall crossfire but yet, failed to work. So then I decided, since I don't have anything important on this laptop, to restart it to fabric conditions. But still, no progress..

So my question is if anyone have any sort of solution for this, or what the problem is. I used to have 80 FPS throughout the whole time, but now it drops to 30 every 5 second. Any help whatsoever is appreciated.

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