Hi!
I just tried disabling mods and the game worked way better with almost no lag, so i´m pretty sure it´s a mod-related issue. The script mods in my game right now are: MC Command Center, UI-Cheats, More Columns Mod, 100-Traits-pack by chingyu, Photographic Memory by RSVN, the Map replacements by 20th-Century-Plumbob and I usually have Wonderful Whims installed aswell, but it´s been broken since the lovestruck patch, so i deletd it (i´m not quite sure if all of these are actually script mods and I can´t check since the game crashes everytime I click on the "view mods" button in the game options).
Yes, Sims is the only game i´m having issues with, e.g. I also play Stardew Valley with mods but that has never been an issue and everthing else on my Laptop is working comletely fine.
Thanks for the tips, I will try that and already deleted the localthumbcache file, but theres also an "avatarcache.package" file and an "onlinethumbnailcache" folder, should I delete those aswell?