[2022] EU4 suddenly very laggy?

Can I ask why you prefer borderless to fullScreen? They ought to be functionally equivalent, really. In general fullScreen will be faster than any windowed mode.

And as a non-action game there's no real visual benefit for refresh rates over 60. Is it that you'd just like to see higher fps numbers for their own sake?

But if this happened after a crash, you could try deleting your Documents/Paradox Interactive/EU4/ folder (except any valued save games of course) so the cache and settings get refreshed.


If still no good, DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/EU4/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/EU4/logs/ folder, attach here system.log , error.log .  

Your video driver is a year old so may as well update it https://www.nvidia.com/Download/index.aspx?lang=en-us

And we see several LiveKernelEvent entries in there, which happen when Windows is forcibly downed or rebooted. Are you seeing those, are they related to this game or something else?

And edit that settimngs.txt to say:

refreshRate=60

vsync=no

Is that any better?