Your daily workload is going to be driven heavily by the number of beginner items, less so for adept, less for seasoned, and on up. There’s certainly no problem with dialing in the number of new items per day, but maybe a better way would be to set an aggressive ideal number of new items per day, but then also not exceed some total number of beginner items.
For example, on Wanikani, I keep apprentice items under 40, which gives me like 50 or fewer reviews per day, which is about what I want to do over there. It’s going to take me a while to finish it up, being level 34 at the moment, but that’s the pace that works for me.
I haven’t set my limit over here, mostly because grammar is scary compared to learning kanji for me, but I would set it at like 10-12 for me before increasing it after a couple of months.