Wyatt Earp

"Fast is fine. Accuracy is final. You must learn to be slow in a hurry."

-Wyatt Earp

I found this on a website on shooting... it applies to piano playing as well!
1. Safety- before speed or accuracy there must be safety. You'd be surprised at the dangerous / unsafe things untrained shooters do every day at the range or in the woods. When there is a shootingaccident all shooters suffer as the anti-gun nuts try and place more restrictions on those of us who use firearms safely.
2. Accuracy- If you can't hit what you are aiming at there is no useowning or using a firearm. One needs to train how to hit one or more targets multiple times from different shooting positions, preferably with some low light shooting thrown in as well since many defensive shootings occur during periods of low-lighting.
3. Speed will come naturally as you build up muscle memory. Trainingwith someone else who is proficient or training at one of the many fine training schools is a great way to realize your full potential for bothaccuracy and speed.