@SHADYN-72 Do you have any mods or custom content installed, and have you tried playing without them? I'm not saying don't use mods or cc, only that it's helpful to set a baseline for performance and go from there. Please test in Sunset Valley, if you haven't already.
Please also make sure the game is using your Nvidia card rather than the Intel graphics chip. Hit Windows key-i, select System > Display > Graphics settings, click Browse, select TS3.exe, choose the high-performance option, and save.
If you still get lag, please try playing while your computer is in offline mode, still with no mods or custom content. You can put the EA App in offline mode, then disable wifi and/or disconnect the ethernet cable before pressing Play.