[2020] Constant stutter every 1.5 second

I've seen problems like this if there are Windows updates constantly trying to apply and failing. If you manually run the Windows Updater app, does it fine a whole new Windows 10 version to apply - not a patch or update but a whole version?

If so I suggest you apply that, reboot, run it again, apply everything it finds then - keep doing that until fully up to date.


That aside I see you've supplied a save file - is that because it happens in that save and not others?

Also, i see you have Vsync off - what fps are you seeing in th egame? if it is excessively high that can be a problem , try setting it to Yes or capping FPS to say 60 in geForce Experience.  

Right, but it only happens with this save, is that right? If you start a new test game do you still see this?  

I see both of you are in games where one power has a huge area of the map, which I know from CK2 was a situation known to cause such problems, especially if a civil war or mass revolt broke out and the map was covered in troops.

I suggest you make a new post in the Bug Reports forum , and attach both saves there so QA and the devs can have them as excellent examples of what needs to be addressed in this area.

Thanks for your help so far!