This is a discussion I regularly have at work, when I explain that I use the fact that I work fast to do my day's work in a few hours - and then use the "saved hours" not to get more work done, but to use for myself.

Productivity is used not to produce more, but to work less.

This is of course easier in a job where your performance is evaluated by outcomes rather than by the time spent on doing any task, and where you organise your own time. Also, you must have the discipline to train your bosses and your clients from the very beginning, but it can be done.

The thing is - you have to get out of the "more is better" mindset. The funny thing is that most people don't believe me when I tell them how I spend my day at work - whether they don't want to or they find it inconceivable, I don't know.

In the long run, we're all dead. John Maynard Keynes