I need to watch again but as a few have alluded to, I think I’d like to lose the canto stuff by not having Finn wake up until much later in the movie. Tie his eventual wanting to get in the escape pod with Poe’s mutiny (which wouldn’t be a timewaster but actually focused concern instead).
That way Rose is introduced and Finn and her make it to Crait as necessary. It seems to work in my head but, yes, I need to see again!