Speeders are that slow. Take a look at the speeders taking off in the movies any time that you feel like it and you'll see that they're much faster than 90%, 100% an 110% of run speed. Also, at least on WoW, you can explore almost every inch of the land mass that you're in, and a lot of the shore line, before you get fatigued.
I, like a lot of other players, would like the game to be successful, but also, like a lot of the older players that like to have some sort of immersion in the game, find that transitions are way to long. It's as if they're loading the entire planet at once, when you only really need to load what's in your field of vision. Especially when coming into a space port. Other than Republic Fleet, you can't mount in many of them. Disable mounting in all of them planetside and their uplink stations, and you can load transitions faster because you could load the next section in the background while you're on foot.