A colleague of mine posted about his approach to writing, specifically, he talks about the speed at which he goes.
Speed is a tricky thing. If you force yourself to keep up a certain pace you can sometimes cram a bunch of words in that you later delete. If you go too slow, you run the risk of never finishing your novel. It’s a tricky balance to proceed at a steady pace and create good writing.
I encourage you to check out his link above — he explains it far more eloquently than I could do.