Solved
Sims 4 is extremely slow and laggy & gallery items are corrupted [MAC & EA APP]
I recently updated from Origin to the EA App. Since I have a MacBook pro the Sims has always run a bit slow, however, since updating to the EA app it has become almost unbearable. It takes about 30 m...
"I can't check my graphics card since I have a MacBook." Absolutely not true. Please provide more information about your Mac. Instructions on how to do so and what to provide here - http://answers.ea.com/t5/The-Sims-Mac/READ-FIRST-Sims-4-Mac-Help-Guides-and-Troubleshooting/m-p/4612396/highlight/true#M162
The items in the Tray folder in the Sims 4 folder make up the households and Lots in the in-game Library. If those files are corrupted it may be causing the issue.
