At work, we have people that build components based on what’s on their “in rack”. If it looks empty but it’s the middle of the day, they’ll work slower to make the work last. If the rack is full but they are feeling overloaded, they’ll also work slower to make sure more doesn’t get piled on top. If it’s “just right” on volume and difficulty, they will work really fast.

I guess what I’m saying is, maybe the kid knows by doing a task in 3 minutes, they will be assigned more work? I’m sure they can do things they want to do extremely fast.