well then try the factory reset ? and then start by putting only your save files, you might find missing store content, see how it goes and exist without saving, then try again, you are playing on the lowest possible resolution, disable animation smoothing, uninstall pets and try again, Like I said on my thread the lagging won't disappear due to all the sims in graveyards and family trees, let me know how much ram you have, I know a few things that can help, but unfortunately we can't talk about them in here.