Yes and no. I’ve also been able to keep things at 0/0 fairly easily with a schedule that allows me to take 5 minutes every hour for WK, so if you do that it becomes pretty easy to stay on top of reviews.
As you go on though, your higher guru, master, and enlightened items will come back in waves to give you a higher workload. So you won’t have a “full” workload until you’re burning things.
If it feels too slow I’d recommend trying to level more efficiently (you can do it about once per week). One other thing I’ve been doing myself is spreading out my lessons over the course of a day intentionally, i.e. only letting myself do 5 lessons an hour. I find this helps to keep the content at a steady flow, and also helps my review accuracy.