What's good enough for Rachmaninoff is good enough for me
Wonderful anecdote. I believe that something similar is true for many performing artists.
Also for athletes. I remember looking at slalom superstar Ingemar Stenmark back in the 1970's. He looked so slow, sliding down the ski slope, I was sure he was going to be last - but he made record times.
Perfection looks slow, because of its effortlessness.