Honestly, what improvement in streaming work with a disk is a question of advertising a product? If the program reserves 7Gb of RAM for each ST4 instance added to the DAW. Everyone can check - load 4 ST4 shells into the Reaper and your system, if there is no RAM on it, will request help! Or ask for an increase in the paging file. On my system SSD, I always turned off this feature. Now forced to turn.
For example, each instance of ST3 reserved 2-3Gb of RAM. So where is the advertised improvement in streaming. If the program almost the entire volume of the tool loads into RAM.
And there is not even minimal optimization, as in NI Kontakt, where, among other things, it is possible to unload unused samples from memory. Or IK has any arguments and I am very mistaken and in the near future we will get a product with an optimal load on the system. Otherwise, 200 + Gb samples on computer disks will remain unclaimed rubbish, despite the remarkable sound quality. After all, ST4 is positioned as the main tool for mobile work. And in this work, as a rule, laptops are used, which by default are weaker than their stationary counterparts. I would like to hear the views of IK about what was said.