Oh shoot. Then I guess having two of my sims go to the park everyday to play for tips (they got really popular) wasn't a good idea..?
Okay, things seem to be working now. Fingers crossed it stays this way. I'm still not sure what exactly caused the lagging, but I'm going to adhere to the wise old saying that unless something's broken, don't try to fix it. Idk why I did the update, I'm a cautious person by nature, but I guess I'll refrain from updating in the future unless it's a matter of game-breaking or fixing. Also I'll be more careful with making relationships. I never thought the mods or cc had anything to do with the lag, as I don't have a whole lot.