Lag in Build Mode and on Large Lots

Just sim 4 when ever you inter the house inventory it freezes and once you close it to go back to live mode the family is in slow motion some times   when you save it will stop but after the new patch it dont work u got to crash your system and works sometime but after the last up date it not working plus the sims been walking through counters doors and other things and now when you tell them to do something they freeze for about 10 to 15 mins I really hope they can find it and fix it it's becoming annoying and un playable I been playing almost three years I spent a lot of money on it to have it unplayable it really needs to be fixed 1 more thing in get famous the paparazzi is really freezing the game when you got like 4 to 5 spamming the camera I hope they have away to tone them down because I really had to remove my sims caleb off her to stop the paparazzi  from freezing me plus the 50 by 50 64 by 64 also needs to be fixed they lag hardcore