If you’ve played Sims 4 long enough, you’ll notice it takes time for Sim characters to respond to commands. This can be irritating and gets worse if you let the commands pile up. One of the best Sims 4 quality of life mods you can use to fix the issue is The Simulation Lag Fix. This mod addresses the common lag issues, ensuring your Sim characters respond to commands more promptly. For example, if you ask your Sim to shower, they will respond to the command almost immediately. Please note that there have been known issues with this modding feature, and at the time of writing, it’s not clear whether they have been fixed. Additionally, if you use MC Command Center to fix game time speed, don’t use this mod.