LiaKnow It looks from your dxdiag like Sims 3 is using the Intel integrated graphics chip, which it shouldn't be doing, rather than the Nvidia graphics card. Are you trying to play with the laptop running on battery? If so, please plug it in instead.
If that alone doesn't help, right-click your desktop, select the Nvidia Control Panel, click Manage 3D Settings > Program settings, find TS3.exe on the list, and choose the high-performance Nvidia graphics option. If that doesn't help either, open Windows Settings > System > Display > Graphics settings, find TS3.exe on the list (click Browse if you don't see it), and choose the high-performance option there.