Strangely, maximizing the game client seems to make it work -ok-. It's still not perfect, but it's actually usable.
Made a video demonstrating this behavior: http://sendvid.com/mwkvu4k0
I'm having the same issue as shown in the video at at 00:54.
I'm trying to use the 1-13 quest profile that was posted, and it stutters towards the destination running in circles and into walls until it finally gets there.