I’d agree it’s better to have one or more set study times and let them bunch up. For busy people I’d recommend getting one of the third party mobile apps to do reviews in batches when there’s down time (eg. commuting, breaks at work, waiting for classes to start). Doing them whenever they come up just results in getting scattered reviews all of the place. Kind of a pain and a task switching issue if someone actually stops to do reviews every hour.
Assuming you do N lessons every day what will happen in the future is that your daily reviews will be at minimum N * number of intervals you’ve reached (Apprentice 1 - 4, Guru 1 & 2, Master, Enlightened), higher with lower accuracy. You won’t really hit that full review workload for about 4 months, but you’ll get most of the way there in about a month and a half.
For more details check out the ultimate guide. It’s not a speedrunning guide, but speed and optimizing study strategies go hand in hand. There’s a lot of tricks in there that can make life easier even if you want to go slow.