Take it easy! Just cause you are playing banjo, doesn't mean you have to set the strings on fire each time you play. Music can still be fun at slower speeds. Music is a feeling. Do you like feeling rushed all the time? Probably not. When playing The Girl I Left Behind Me, try to imagine taking a nice stroll down by a riverside, or lazily swinging in a hammock. Use the 4 to 5 slide to shift positions, and use the open strings to make position shifts when necessary.