I commute on a Cannondale Criterium... its actually designed for ridding short distances and going fast (no comfort). Ive gotten used to the stiffness and love going fast on my commute. I pack as light as i can and keep it all in my messenger bag.
My commute is 6mi each way and i mainly ride thru the city bike lanes and neighborhood streets. So as long as you are enjoying what you got.. it must be working for you.