If i could beam a message into every person's brain in the world I would tell them: Do not work harder than your average coworker. Especially if you're working on a project-job that has an end condition, don't be the fastest worker!!!
If you're working way faster than most of your coworkers, the bosses will assume that everyone else needs to work at your speed. If enough people work too fast, the job will be done ahead of time, which means EVERYONE won't get paid for that time. You are fucking over everyone including yourself.
I worked a job moving books out of a library. Part of it was putting books into a cardboard box, labeling them, and stacking them to be moved later. Most people would do up to 200 boxes a day, but we had One Super Worker who would regularly do twice that.
It was so uncomfortable! Talking to my coworkers, anyone who worked the same job site as them would say they felt awful pressure of feeling expected to keep up with them. This was a seriously physically demanding job, these books were bound academic periodicals, as heavy as books can get. 10 hour shifts of lifting and squatting with them. Working at my own pace at this job I'd often just go straight to bed when I got home.
You don't want to be the slowest worker, but you really do not want or need to be the fastest. I'd much rather have an annoyingly slow coworker than a speed demon making the rest of us work needlessly harder.
