If you want to go faster, raise your internal quality
Mike Hill has written an excellent article titled " How TDD and Pairing Increase Production " An excerpt: "If you want more production, look first to raising your internal quality. ... All day long, every time you make a move, you will be depending on the code that’s already there. Every line of it you have to study will slow you down. Every extra open dependency will slow you down. Every bad variable name will slow you down. Every flawed design decision, be it big or small, will slow you down. If you want to work as fast as you can, you want to work with clean code. Period." There are many more thought provoking truths in there. Read it! It might just change the way you write code.