Learn to love it
I agree with the others. Treat this as a useful feature of your boat. Once you learn to anticipate and control it, it can be as useful as a bow thruster. If you are not already familiar with this method, learn to turn your boat on a dime. Try this on a calm day in open water, but near a buoy that you can use as a reference. If you have reverse prop walk to port, then turn your rudder full starboard (i.e. opposite). With the boat at rest: a) shift to reverse and give the throttle a burst, but ease off just before the boat starts moving backward. Your prop walk will cause the boat to rotate clockwise before it gains any headway. Without any headway, the position of the rudder is irrelevant and the only force involved is prop walk. b) after dropping the throttle, shift to neutral, give the prop a few seconds to stop, and shift to reverse. Give the throttle a burst and drop off just before the boat begins moving forward. Wash from the prop hitting the full starboard rudder continues the clockwise rotation.Repeat steps a and b until you have rotated a full 360 degrees with the center of the boat continuously remaining over the same spot on the bottom. This is a very useful skill when operating in a confined space, like between two piers at a marina. Many people think it takes two engines to accomplish this maneuver.As someone else said, don't try to fix what isn't broken. Learn to use what you have.