Yes SA looks to be quicker. Vic was too slow. The lesson from Vic with the Second Wave is that all jurisdictions should be ready to act.
I think part of the problem in Vic at the time was that they thought it was just the First Wave dying off, and yes the first wave strain was. Whereas it was actually the new second wave strains. Of the 3 strains one went no where, one was soon quenched and one took off due to various factors including a super-spreader, being in larger householders ( and so higher Ro) and people who tended to not get tested, or if tested to isolate (ie lack of paid sickleave, distrust of gov etc) and it just ramped up from there. So Vic was too slow to act, and too slow to realise that it was not just the first wave strains having a few hiccups at the end.
Speed to act is crucial. As is the understanding that with the world at large having high CV19 levels that outbreaks will happen in Australia from time to time (e just look at the ongoing breaches in NZ). So like the Taiwanese were originally, we need to be ready to act when things happen.