I've merged your post into this thread in the bug forum. The thread you posted in is for very specific graphics and performance issues on 16" MacBook Pros. Your issue is simulation lag which users on all types of machine can suffer from. The best thing you can do is provide @SimGuruNick with one of your affected saves, he tweeted here with instructions https://twitter.com/SimGuruNick/status/1382462028443373569?s=20 You really should try a new clean game too and see if it is also affected, make sure to try completely vanilla so no saves/mods/tray items, just a nice new Sims 4 folder.
You should rename or move the Sims 4 folder so a new one is created. This ensures absolutely none of your previous content and settings are in the new save.