Re: sims 4 lag with a high end pc
@katelynwstxoxo Please try playing while your computer is offline. You can sign into the EA App and put it in offline mode, then disable wifi and/or disconnect the ethernet cable before pressing Play.
If that doesn't help, try disabling Online Social Features within Sims 4, in Options > Game Options > Other. You'll need to restart the game to see the effect.
If that doesn't help either, please try playing in a clean boot:
The one service to leave enabled is the EABackgroundService, which the EA App needs in order to run. Disable the rest as described.
When you reboot your computer, go through the Task Manager's background processes list shutting down any service that doesn't absolutely need to be running, for example anything from MSI Afterburner to RGB software might still be enabled. If you accidentally kill a critical process and it doesn't restart on its own, just reboot your computer again.
Don't open anything other than Sims 4 and the EA App while testing, not even a browser window.