Re: Sims 4 2 different folders/ game very slow and laggy
@s1m0n9467 Sounds like you might have duplicate mods, multiple versions of mods, and similar issues. Having too many script mods can cause this (and other problems). So can just generally accumulated issues.
I'd suggest that a good first thing to do would be to reorganize your folder as a way to sort through it and find problems like that. Organizing by creator will generally find them. The mod Better Exceptions can be used to find some issues too, especially duplicates. Also check Broken/Updated Mods & CC for recent updates.
Other things to do: Delete localthumbcache and resource.cfg and let the game create new ones. Delete all last exception and last crash files.
It can also just be quantity of mods/CC.