I'm having the same issue in Tanaris running a questing profile on my 45 warrior. I started the bot 15 minutes ago and it's still loading tiles to pick up the quests. Last night I turned on the bot as I was about to fall asleep and as far as I can tell it loaded tiles for like ~7 hours. Granted, I was quite a ways away from where the profile was about to quest, but even given the travel time and the amount of tiles between the two points, it shouldn't have taken that long. I personally like the look of the new GUI, however there are still a lot of bugs to fix by the dev team.
I know this isn't the right thread for it, but couldn't there be some type of CC loader like there was in the old HB? The "one click, ready to use out-of-the-box" style is definitely nice for those first time botters, but for seasoned botters that want to go a bit more indepth with how our character's act and react to stuff should have the ability to easily do so in the bot options. I haven't really had time to play with it a lot, like I said, I turned it on and went to sleep only to find I got 50% through level 44 (*WEWT*) in about 8 hours from level 43.
edit: derp english is hard.