>>55988394No shit.
Twins had an initial (and still ongoing) "twins" buff, on top of being very cute, both things that result in very fast initial growth.
Shiori by comparison is specifically going for slower growth with her stream choices so far and will be further hampered by the break so early in her Holo career.
It's early to tell if she'll be a Sana though. Even Sana wouldn't have been a Sana if she had only gone on break for a week or two when the dog perished, so I don't think so.
Twins are going to lead. Nerissa could easily catch up in time. Bijou will truck along steadily similar to Kaela, possibly better since she doesn't seem as grind focused.
Shiori is going to truck along too, probably going to have a tighter community than the others, but the specifics will have to be seen.