This is a very good point. A lot of the time there is a vast amount of space which goes unused. It's a tough one because Pioneer have obviously tried to incorporate some design into how the information is displayed, and making changes to the display or making it configurable is no simple task.
My track names are labelled as such: LABELXX - 01 Artist Name - Track Name (Mix Name)
Most of the time, I only get to see: LABELXX - 01 Artist Name - T