That sounds ideal for working harder, not taking it easy :).
Certainly agree on the "less draining" part -- but I'd like to think I'm being paid for making stuff, rather than for ending the day shattered.
Some employers seem to have different views, though.
I don't disagree; Google says "take it easy" means "proceed calmly and in a relaxed manner" which I think fits what I described (and you'll probably get more work done this way, too if you already have a good idea of what you need to do.)