Big things start small, but not every small thing can become big. You need to be on the right trajectory. Choose the right playing field and success… - James Clear

Productivity is most important for things you don't want to be doing. Most people want to increase productivity so they can spend less time on the task.

But before you worry about being more productive, think about being more selective. Rather than focusing on increasing productivity, it may be worth asking, "What would I be delighted to spend time on, even if it went slowly?"

Direct your energy toward figuring out how to start what you want to do rather than thinking about how to shorten what you don't want to do.

If you…

1) develop a bias for moving fast
2) consistently ask, "What's the real goal here and is there a better way to accomplish it?"

… you can accomplish a lot in one life.

At some point it comes down to who can handle the boredom of training every day, doing the same lifts over and over and over.