As it is, the USSC only takes 1% - 2% of the cases appealed to it each year (this particular case was one of the others), and they are still bogged down. I’m not sure if 9 Justices is enough, even with all of their staff, to handle the cases that come from 325 million people and the businesses associated with them.
I wouldn’t mind it if Trump would be given the authority to name, say, 10 more Justices so that there’d be 19. :>) Short of that, we’re kind of stuck with the present system.
Instead of being a part time court, they should go year round, get their “opinions” written and publish closer to the respective hearing and take twice as many cases.
Besides, Traitor Roberts is alleged to be in charge of the FISA Court(s) which need a thorough investigation, reforms and likely some Judges fired for allowing fraud.