Both work in same way.......

Is just better quality hardwer, the sofwere is the same.

We had MaxiSys 908 Pro and now we have MaxiSys Elite.
Both equipments have the same functions, but the Elite is a lot faster and has more memory available for future updates.
The MS908P became more slower since its memory were almost full.

  I had a MaxiSys Pro that had 32 GB internal drive that still had 5 months of update period left when I sold it. It had recently had a Factory Reset done to it , and re-downloaded the most recent system update and the car apps one at a time starting with the largest Car App files first. As far as boot up time comparing it to my new MaxiSys Elite that I was pleasantly surprised came with the same sized larger 64gb internal flash that the newer MS908SP came with . The speed difference between my older MS908P after a Factory reset with freshly downloaded software versus my new Maxisys Elite on boot up time seemed negligible and hoping that doing a factory reset and fresh reinstall of system and car apps several weeks before running out on my update subscription in future will help it to keep operating out of update period with everything fit on internal drive without lack of space issues or glitches caused by fragmentation by past updates. With any tool , the autoscan time is often determined by the car , make, model, and year limited by the system network speeds of the vehicle. On older vehicles an old DS708 probably do autoscan old POS cars  in around the same amount of time as a MaxiSys.