Game getting insanely slow for no apparent reason

Guys, I need help,
I own a pretty decent laptop, and I played for a year with no issues on high graphics.
Around 2 months ago, I had to switch to medium graphics, It is common knowledge that the game keeps getting bigger and slower, but it was still playable. Now today, I open my PC and see 14 FPS, and I did a GPU benchmark, and the game is now telling me to go at minimum graphics.
I tried to delete a bunch of things; I did malware scans and tried a bunch of optimization. The worst is that other games still run with no issues, so I need help.

Post Scriptum: Switching to minimum graphics and back to medium gave me back a playable 55 FPS, but the problem is still here and will come back another time since this is not the first time I have this specific problem.

Here a my specs

CPU: Intel(R) Core™ i7-9750H CPU @ 2.60GHz (2.60 GHz)
GPU: NVIDIA GeForce GTX 1650
RAM: 16,0 Go

If you prefer, here is my Discord account:eureka9037
Thank you for taking the time to read.