For years my goal was to write faster, but I made no effort to write better. Though I did improve, my progress was gradual.
When I got serious about improving as a writer, I had to force myself to slow down and be more deliberate. Now after many years of focusing on the craft, my speed has returned and then advanced even more.
But I lost a couple of decades focusing on quantity instead of quality. If I could have a do-over, I’d focus on content first and not worry about speed.
I call this my quantity versus quality error.