This mod makes the game’s logic threads run faster, speeding up loading of Buy/Build and CASt, smoother UI elements, smoother CAS, fixes CAS music randomly stopping. Can also speed up live mode and loading, it’s essentially a general improvement.
Steam/Disk(Repack's) version: Dropbox
Simply unzip the file into your “The Sims 3/Game/Bin” folder.
Origin version: Dropbox
For Origin, unzip the file into your “The Sims 3/Game/Bin” folder, and launch the game from “TS3PatchLauncher.exe” every time you want to play. It’ll be just like launching the game normally from Sims3Launcher, going through Origin and everything. If you’re bypassing the launcher by renaming your TS3.exe to Sims3Launcher.exe, it will also work just fine so don’t worry about it!
You can configure the mod by editing the TS3Patch.txt file with notepad. I left comments in that file on how to set it up if you’re having any issues or if you think your computer is good enough to increase the speed more (or decrease it if the default is too demanding)
The changes are most noticeable in CAS: Smoother body sliders, Sim rotation and quicker switching of clothes.