3 months ago - AndrewT - Direct link
This is almost certainly a local issue, from your description, I'm afraid!

I take it this has not always been the case for you, with these games?

You may as well update that nVidia driver to 2024 https://www.nvidia.com/Download/index.aspx?lang=en-us
AND unload GeForce Experience if running, before starting the games.

IF that doesn't help:
Please attach here your Documents/Paradox Interactive/Europa Universalis IV/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/Europa Universalis IV/logs/ folder, attach here system.log , error.log .

Please report the temperatures of your CPU and video (GPU)
1/ before starting the game up and
2/ after say 10 minutes' play.
If your PC's vendor has given you no way of reading temperatures, install
SPEEDFAN http://www.almico.com/sfdownload.php