I don't know, maybe it is my own insecurity, but I feel very guilty riding at a leisurely pace during morning traffic. There isn't really a different route I can take to work. I could take sidewalks but I find that to be very unsafe (based on the people that ride out in front of me all the time when I'm driving).
I also don't really have time in the morning to stop and get a coffee (not to mention lack of coffee places). I could get up earlier but I am not really a morning person. I suppose I could walk but that is boring and would take a long time. I realize I'm coming off rather whiny here.
I think I will just try slowing down a bit and see what happens. As far as taking a longer route home, it's easier to just go home and change and go for a ride, and I usually do that anyway as the girlfriend wants to get one in.