I also think they are a bit long, but I think part of that is that my character is traveling in regions that have recently been colonized, so the roads are in terrible condition. Once that gets better I would hope that they become reasonable.
From the Desert of Silhouettes to Sallowwild is:
extremely bad road, 172 miles, ca. 39 hours
I am not sure what that will become once the road is in good condition, 15 hours?