The Sims 3 Island Paradise Isla Paradiso lag

To anyone: I found something that actually works for me to fix the lag! (On a higher end pc)
First, set all your graphics to the max,
Then, delete the Scott-family, as their house seemed to give many routing problems,
For extra safety, install the mod NRaas Overwatch, as this mod tries to fix routing problems automatically, thus reducing the lag.
Seems weird, but yep, it works :D