Re: live mode not working
Please can you 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
What else do you have running in the background on your Mac when you have the game running? Other apps and also background stuff like Google Drive, Spotify etc. Background apps running should typically show in the top right corner of the menu bar on your Mac where the clock is.