On this dev system for sure, all in one TPS server and SQL box are both running on SSD drives. The speed of saving pretty much anything in the design tools has never been a strong card for LDSD (IMHO), hence my decision to simply throw hardware at the problem. Since I'm often using Design Transfer to take things from DEV to UAT/PROD, the speed of saving on the customers system is less of an issue for me.
If you do come up with anything, let us all know!