It's quite jarring when you get to places like The Nameless Isle and your journal tells you that it hasn't even been full day since leaving Reaper's Coast.
I'm pretty sure that it would at least take a few months to get there cause Windego's narration states the party has gone on many more adventures and the fact that
The Red Princess(Sadha) has already laid all the Dragon eggs(3-4 my estimates) by the time you find her.

Personally I would make it an option in settings for Hardcore Roleplayers who like to make things up constantly , but not everyone enjoys having to constantly fill
plot-holes that were left on purpose. I'll also be creating a general thread on the effects that Source has on Space-Time.