Normal
You should be seeing two of the original ports, both Cosumel and Belize City, with Progreso added in to compensate for losing Roatan. Progreso is the only port near Cancun and on the Dream's course which it could reach with it's broken diesel anyways. Yes, 13 to 14 knots speed isn't 20 to 21 knots. On the bright side of things, there shouldn't be too much wind blowing across the decks.