First of all, your steps should be normal...as in normal length. Anything else you are manipulating the way you walk and walking is something you've done since you were 2.
Secondly, if you have timing issues with 5 steps, you should try 4 steps. Try moving the ball with your first step...push it towards the foul line and not upward. Also trying to lock your arm in front of you can cause you to pull the ball back due to muscling it.
Fast feet are generally a sign of early timing. You have the ball into your approach too early thus muscling it. When you try and pull the ball back to try and get back into time, your feet are naturally going to catch up causing them to speed up...thus thinking your feet are fast.
Start with your shoulder relaxed...this helps relax your swing and a swing is a non-manipulated motion.
The views and opinions expressed by myself are solely those of mine and NO one else, nor are they affiliated with anyone else.