fps problem

[grave fulcrum]

Hi, I'm playing this game for about a year and I've got a weird problem.
In bbr sometimes the fps fall down to 10-30 FPS, where normally I've got 144.
I dont think that it is my PC problem (Rtx 4070 & i5-13k on 4k ultra hd 144Hz)

[solar pendant]

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[vital girder]

what did you already try to fix this?

[grave fulcrum]

Idk even how to solve this problem

Ive tried also changing the quality but it hadnt helped

[vital girder]

did you try to reinstall the game at least?

[grave fulcrum]

yes I've even changed mine PC and Ive restarted to factory state my pc 3 times

[vital girder]

factory reset usually won't do a thing as it is just wipes user data, in order to get much better effect you might want to reinstall windows completely using flash drive with Windows installation image