Within reason. There are limits. You want to remain in the torque and power band of that engine. To high an RPM (low pitch small diameter or both) and you will exceed the RPM range that the engine will give you the best performance. Over prop it.. higher diameter or pitch or both, and you get the opposite.. you get below the optimum power band and you just can't do anything with it.

The only real way to find out what you want is to buy several props, each in the range of the recommended props for that engine, and try them. Find one that will keep your RPM in the optimum range and give you the best performance.

CGr.