Hey Mocha,
Rav Ashi Chazzered Kal Hatorah in thirty days. If that would be referring only to Shas Bavli then it means he went through 84 (K’minyan Daf) Bletter a day. I hope he didn’t get punished for those thirty days of Bittul Torah.
Truth is, though, that if he learned for 20 hours those days that would be around four Blatt an hour. 7-8 minutes an Amud. Not that bad.