The track it creates might have very many anchors in, which tends to make a very bumpy track. My advice would be to import the data, save the track, then duplicate it and work on the duplicate. Try taking out every other anchor, watching if it drastically changes the layout or not. Use the undo feature if you're not happy and try deleting the next anchor along. You'll soon get the hang of what combos work. When you test drive the track, if there are problem areas, then you can focus on adjusting those next with more deletions or other editing.
Good luck!