Fast travel is actually slow travel.

[Aetrion]

I kind of don't like how quickly time advances when you use the fast travel feature. I can ride from town to town in maybe an ingame hour if I do it by hand, but if I fast travel half the day goes by before I get there, which kind of makes me nervous to even use it in a game where quests don't give you infinite time.

How long do quests actually wait for you? So far I think I've never been too late on anything, but I've also managed to knock out every task I was given that seemed like it was time sensitive within about two days.

Anyways, I kind of wish fast travel wouldn't advance the clock so quickly that every time you use it you basically lose half a day, because riding by hand doesn't take that long in game time, it just takes way longer in real time.

[Tyrir]

It's fast for the player, not the player character.

When I tested it, the fast travel seemed to be +50% slower than manually running/galloping hard i.e. using stamina efficiently.