Yup, basically what Ddjross said.
I’m still in the early levels, but I’ve been improving my times steadily.
When I unlock a new level, I do all the radicals and the first batch of kanji. While I guru up those to gain access to the other half of Kanji, I do about 25 lessons of vocab a day.
I also only do WaniKani three times a day, currently at 9AM, 1PM and 9PM. It’s honestly pretty chill. My fastest level took me exactly 8 days so far, but the fastest you can go is 7.5 days iirc.
Important edit: I also use the scripts in this guide, mainly the lesson filter, so I can choose what kind of lessons I’d like to do and how many / batch
Check out this guide!