[2020] (1.1) Extremely Low FPS and constant performance issues

Link Shepard said: Will run at 60 fps for a few seconds then lock up completely for 4-5 seconds for entire time game is open.

If you turn off autosaves does that help at all?

DXDIAG is a program you run from a command prompt or the Windows start menu 'run' dialog box (or 'search programs' in Windows 7 or later). 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 your Documents/Paradox/CK3/pdx_settings.txt .
From your Documents/Paradox/CK3/logs/ folder, attach system.log , error.log  

No obvious issue in the dxdiag, but many many errors in that log. Please do a full **clean** re-install:

- move any valued save games elsewhere
- "uninstall" in Steam-CK3
- manually delete both the Steam/SteamApps/common/CK3 AND Documents/Paradox/CK3 folders
- re-install game in Steam, run a Steam Verify when done.
- add CK3.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.
- start the game with no mods active and test with a new campaign - NOT any existing one

In particular make sure there are no files or folders left under either the Steam CK3 or Documents CK3 locations, before installing again.

Is that any better?