I am skeptical of anyone who has read Moby Dick and not admitted how much of a slog it is.
I usually read a book in a couple of sittings. This favors lighter fare, with copious excitement to keep one engaged.
I could never do this with Moby Dick. But with a 10-30 page reading per day, you hear about some interesting thing: perhaps mostly whaling and sailing, perhaps advancing the plot and characters. It's not enough to sustain an excited big read, but it's certainly enough to make you wonder about what you'll read next.
The chapters average 3-4 pages long. I think this is a hint that it's intended to be consumed in morsels.
When I was a child, I have read Moby Dick and I have enjoyed every part of it very much, including the so-called boring parts about the history of whaling and so on.
At that age most of what was described in the book were new things for me, so they were interesting.
Half a century later, I would never have patience to read any similar book, as it is extremely unlikely that any such book could contain anything that I have not read before.