So at wich point/lvl do Laura and Anika (only lvl 8 so same question for girls higher) give more cash then Cassandra?

Atm all of them are lvl 150 and there stats are
Cassandra 34,81Qi/s Story 4/5 on 4th panel
Laura 1,58 B/s Story 4/5 on 4th panel
Anika 270,72 B/s No Story atm bc new

Its clear to see that leveling Laura/Anika does almost nothing in terms of money making for me.

Even all girls below Cassandra bring more cash/lvl.

So does the "Story" influences them way harder then i expect or are they just so bad at my point in the game?

If someone of a higher lvl or more "Story" could enlighten me would be great.