@kzs695 As a test, try running Sims 4 on the integrated Intel graphics chip. This is not a good long-term solution, just an experiment. Hit Windows key-i, select System > Display > Graphics settings, click Browse, find TS4_x64.exe, and select the power-saving option. Then restart your computer and try to play.
If that doesn't help, force the game to use the Nvidia card instead, in the same way, except you're choosing the high-performance option.
The idea here is to see if switching to the other GPU makes a difference. Whether it does or not, it's useful information.