I don’t think I would recommend going as fast as possible. As mentioned in my initial reply I slowed down near the mid-30s as that’s when enlightened reviews start coming up for burning and it was becoming too much. I don’t think it would hurt to try other things like reading to see if all the lookups are too taxing. If it is you are able to stop without any sort of reviews coming up that you have to maintain and can shift your time and focus elsewhere like more WK reviews.
I still study every day using various SRS tools like BunPro and JPDB io, and after doing it for 6+ years I’ve learned a couple of things to keep it more manageable. I’ve started setting limits on new lessons to keep it from becoming it’s own full time job. On JPDB I learn 10 new words (includes kanji and vocab) every day unless I got 30+ wrong the previous day. That works as a decent proxy for keeping my daily reviews under a certain amount. With BunPro, since I’ve hit N1 Grammar at this point I’m only doing 2 new lessons per day and I skip lessons if I had 40+ reviews the previous day. For Wanikani I’ve seen people set Apprentice limits and I did similarly when I slowed down in the 30s.
FYI on BunPro. They recently introduced Vocab Coverage for grammar points which tells you what % of the vocab you already know from the sentences it uses for reviews. This is based on your WK level (if you connect them) as well as any vocab you have learned on BunPro itself.