I've found that games just move slower online than in person. There's no subtlety of non-verbal communication, and no easy give-and-take at the table, so conversations just take a bit longer. Sometimes, connection issues stall the game a bit, as well, with people needing to reload their character sheet to make a roll, while in-person play often has everyone ready to go right then.It's interesting to me that your online game has steadily kept an adventure behind ours, while your live game is already about to pass us.