Speed is not an indicator of quality in terms of fiction. That's true of one's relative slowness or swiftness - taking 10 years to write a book or taking 10 days to write a book (or a comic or a film or an angry postcard) guarantees nothing in terms of how good or how bad that story is.
Your dream is a good one. [. . . ] The desire that is the very root of life itself: To grow until all the space you can see is part of you, under your control. It's the desire for greatness.