Learn To "Swing Soft" to hit far.
Adding speed won't help until you are ready.
The club swings on an incline angle, it does not swing "down" towards the ball. When you transfer force to counteract the swinging club, be sure you are pushing away and not "up."
Creating width is not a matter of how far you can move the clubhead from your body, it is how far you can distance the club handle from your chest. Creating width is the first step to increasing distance with your driver.