Took me a while to learn this - I should have listened to the people on this board telling me so - but those who work the fastest can count on one reward, and one only;
More work coupled with unreasonable expectations.
There are no "attaboys" at UPS, there is no reward for doing better than anyone else. You do more work than anyone else? You won't get a thank you or recognition, you will get grief when you don't keep that peak performance.
There is a reason why your fellow sorters / unloaders work at a slower pace than you, and it is not laziness, and not because they are tired or don't care; they have learned that there is simply no good reason to.
Here is the most clear expectation/similarity I can come up with; Picture the old Roman Ships, with rows & rows of men in the bowels of the ship, pulling on the oars, hearing "ROW, ROW, ROW" over & over again. These men had no control over where the ship was going, had no say in how the ship was run, and would be happy if, by the end of the day, they survived & were not whipped. Only UPS is worse than that, because you also have to listen to morning meetings talking about power zones and how to use your feet until you want to kill someone.
You will learn that UPS is not what you were expecting. You will learn that the only time you will hear from your SUPs is when you screw up. And, my most recent revelation, you know you have had a great day when you are simply left alone to do your job.
Sorry - feeling just a tad negative on UPS this week.