Sims 2 Legacy on and off Lag

Been playing Sims 2 legacy for a few hours and everything was running fine, went to a community lot with a sim that owned the business, went back home and since the sim has been home I get constant on off lag only on my home lot and my computer sounds like its working harder. I can take my sim to any other location and the game runs fine but as soon as I get back to this sims home I get on off lag. Have gone into other families to see if they lag after going to the same lot but they all appear to be fine.