December 2020
I have sims 4 base game+seasons+tiny packs. I also used some mods, with no problems, however..since last week the game is unplayable, it is always lagging.(I use origin) Tried repairing the game, uninstalling, reinstalling it. Deleted mods, trays, cache...everything that may cause problems. Despite all these trials, my game is still slow while launching. After playing a few minutes it starts to lag, then it freezes. Before 20/11/2020 everything worked fine.
My PC has a really good config, so the games should run on it without a problem!
December 2020
@gemmalynn001 Could this be your issue?
If so, please try the suggestions in that post.
If that's not your issue, please run a dxdiag and attach it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/