I wonder if this is a common experience, with Rime of the Frostmaiden, as I experienced something similar.

There are definitely, interesting thematic elements, and well written portions in the module, but the connective tissue is weak, and there really is not a great end.

A DM needs to go through the module, and order and conceptualize what parts they will use, and what they won’t. In some ways, it may be easier to invent from whole cloth.

One easy way to get out of the far north is to use the Prisoner 13/prison scenario, and perhaps tie that in with the min adventure in the heist themed anthology that takes place in the same local. Ships do go to the prison, so you can easily get the players south via ship.