difference in Performance? I am not just talking about faster access and rendering times but also asking if it will make timing and beat reliability among tracks better.

I already run the BIAB program on the computer with SSD, but I am accessing the RealTracks on a peripheral 7,200 spin Hard Drive. If my peripheral drive is a Thunderbolt SSD would my sessions be "qualitatively" better?

Also, my Mac has 16mb of memory. When I am working on a PT session is there a way to load the RT data into RAM so my BIAB session does not keep accessing the RT data on the peripheral HD?