I like some of it and I'm not too crazy about other bits of it. What I remember from the days of Sims 2 was sometimes to get the game running it's better to create a user account and run the game through their without all the other things that normally run in the background. The game runs find on my system but I'm buying a new video card to see if it runs smoother. It's not slow but the graphics are turned down a bit.
You might try downgrading the graphics and see if it runs better for you.