Here is a way to pick locks fast!
Fist when you start picking a lock make sure your lock pick is all the
way over to one side (Your pick can be put in different angles) now
start moving your lock pick in circles and while doing that hit the
ATTACK button very rapidly. Why this works: While I was playing the
game a game hint said to hit the attack button when your on the sweet
spot of a lock and it will make that part done instantly. thus by
moving the pick around and clicking fast you hit it each time!)