simulation lag
@angelgregori For now, see how the game runs with every graphics setting turned down to the minimum, and laptop mode enabled. Don't play in San Myshuno or Henford, and remove all lot traits from your sims' home lot. (You may be able to add them back, but test without them first, and a few might be a problem on your machine.) Play without any pets, at least for now.
Additionally, launch Sims 4 immediately after restarting your computer, with nothing else running in the background. A more intensive intervention is to play in a clean boot, which basically means disabling all nonessential background services to free up all possible resources for Sims 4. Here's how:
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.
You don't necessarily need to do all of this, all the time. The idea is to see how well the game can run under ideal conditions, then add back content until you notice performance issues creeping back in. You can then decide what content you can live without and what's worth dealing with the impact on performance.
Whenever you're ready to buy a new computer, feel free to create a thread in this forum asking for help. Or if you're not ready until after this site is closed, come find me on forums.ea.com, still in the Sims 4 PC tech section.
