There is a mod you can make.
What I think you are referring to is joystick "throw", which means the distance the knob travels before switch actuation. Something to keep in mind when looking at the the throw of a stick is that it is directly related to the length of the shaft, where the switches are in relation to the pivot point, and the type of actuator and switches used in the design. For instance, a long shaft, with the switch actuator close to the pivot point will require longer travel before actuation.
Long shafts make for easy installation in thicker panels, but they come at the cost of a longer throw. If you are set on using the Competitions, you can make a mod which will shorten the throw by reducing the height at which the stick sits. There are multiple e-clip grooves on the shaft, so all you need to do is evenly sand down the height of the plastic spacer until you can just get the clip onto the second groove with the actuator under spring tension (pushed toward the base). When you re-install the spacer, make sure the factory surface (the side you didn't sand) is down toward the base. This will shorten the height somewhat, but it will add some responsiveness to the stick.
RandyT