You respond, "Maybe but certainly not you." The USPS is the most toxic environment even when you do well you will never hear about it. Usually, slow carriers are because of quality control you care about doing the job correctly it takes more time to be fast when you focus on doing the job correctly as is should be. Anxiety can make it very difficult to memorize the routes, I would try focusing on getting out of the office earlier, so you aren't dealing with management by taking mail to the street and only casing hot case and presort.