I wish I had read the rest of this thread before today and not updated mine. I too have a high end spec system and can't get the game to run without crashing right to my desktop and that is without any mods. I fear my game is now unplayable.
If you haven't updated, DON'T!
Am so sorry to hear that. Have you tried a folder refresh or game repair? and try and boot up the game without mods. Also, try clearing the ea app cache.
https://help.ea.com/en/articles/technical-issues/clear-cache/
https://simsafterdark.com/diy-troubleshooting-library/how-to-folder-refresh-game-repair/
