>>325064603 streams a week is solid, it would be unfair to compare her to Koyori or Watame-tier monsters who tossed their life away for streaming.
Fittingly her oshi is Sui-chan, who could be notorious for not streaming much if it weren't for actual results showing frequently
looking at you, Ojou.
Iroha is the one newbie it seems, all the others definitely had experience with this business. Her strengths are with doing blockgame autistically, sports and nerd shit, she'll suddenly have her Nenechi-Moment or Subaru-Moment where she's ignored for quite some time and suddenly comes out of the blue with a banger performance of her new original song complete with sick dance moves.
Just give her time. We're still in the dispersing phase for HoloX where the holos start getting comfy with laying off their characters here and there (some autists never did because they lack identity peko), Sakamata never even stuck to her's because she knows with certainity how to play this sick game of entrancing nerds.