Bowling Takes Too Long & Game Laggy with Big Family on Large Lots

Try moving the whole mods folder to another place, delete the localthumbcache.package and then test to see if the issue remains without mods/cc there.
Lagging on homes can also be caused by having a lot of photos in the build that sims have taken or paintings. Try removing them and see if that helps. Also the amount of furnishings can cause issues.