Some will argue the driver is the most important club in the bag. If you are not confident off the tee it is hard to score well. A proper driver fitting is crucial, but it is just as important to make the necessary adjustments to your driver head to maximize your distance and decrease your dispersion.
Almost every driver these days has some form of adjustability to the head. Most golfers have no idea what they do or how to set them up to benefit them. Just making a few adjustments could be the difference of 5-10 yds in distance or direction. Take the time to learn more about the adjustability or make sure to ask the right person to educate you on how they affect your ball flight.