Pablo Picasso purportedly said:
“The chief enemy of creativity is good sense.”
If you want to write faster, you need to ditch your good sense. That is, you need to drop your inner censor into a deep ocean.
Don’t worry, he’ll bob up again, the next time you sit down to write. You can’t kill your inner censor for good, and you wouldn’t want to do that anyway. He has his uses, but NOT when you’re in creative mode.