What Works?

Riddle: What work is it that the faster you work, the longer it is before you're done, and the slower you work, the sooner you're finished?

Answer: Roasting meat on a spit Source: https://www.riddles.com/1229

What work is it that the faster you work, the longer it is before you're done, and the slower you work, the sooner you're finished? — What works? by Anonymous Riddle