Viridi said:
the actual explanation is that anna's an idiot and the trip takes 10x as long when you have to deal with her
kristoff, being a mountain man who's been doing this kind of thing his entire life, would probably be able to do it about as fast as elsa
how about the fact that anna's not a mountain man or some shit and that doesn't make her an idiot just because she can't climb a bloody mountain
likewise it doesn't make a mountain man an idiot if he becomes a princess, it just makes him inexperienced to the job
elsa's like the ice queen, at a certain notice, she just goes where she wants to go and builds a castle there, and can get there by using ice powers to her advantage
kristoff is a mountain man, so he knows how to climb mountains and shit, but, like anna, doesn't know where he's going to find elsa
and of course anna is inexperienced in climbing mountains and also doesn't know where elsa's gone. the only person who knew where elsa went...
...was elsa!
and yes, maybe anna held kristoff back a bit, but that's because she doesn't know what the hell to do, why not try climbing a mountain as well, see if you can do it better