I played her at Origins in two of the tourneys. The first time, against Seamus, there was a lot of terrain (an elaborate 3D 4x6 sewer setup with hairpin ramps, ladders, and waaaaay too much other obstruction). No way was she making it anywhere with that. The second time was against Lady Justice, on largely flat terrain, and she made it into casting range one turn behind Cade and Candy, just as my opponent was learning why small children on a battlefield are to be feared.
I don't think she needs to be faster, per se, but some way of dealing with large amounts of terrain would be nice.