Game lags after latest expansion life and death!

benny31345  In theory, you could use a third-party site to host your save and link it here.  In practice, I don't generally test saves because I don't own all packs, so it wouldn't be a valid comparison.

What you can do from here is delete one room at a time in the house and see what helps.  (Don't forget the landscaping; you can use the fence tool to make a "room" there too.)  When you've figured out which room is the problem, pick through its contents.  Or if the entire house is the issue, in that each room contributes something to the lag, maybe it's simply too complicated for the game to handle.

It's also worth testing this house with new sims in a new save, just to make sure the build itself is a problem and not something about it within your main save.