There was once a famous Smalltalker, a renowned toolmaker who took a "for now" job at a telecom. He could do all of his week's assignments in a single day or two, where his coworkers would take the whole week to accomplish less. So what did his boss do? Basically, demand that he suffer as much as his coworkers. Result: The boss lost his most productive and talented worker.
That's why you get it done and don't tell anyone else about it until the due date. People that get things done quickly are usually rewarded with more work and responsibility at the same pay.
