HI,
the key is to not alter what I did, but actually add another layer of processing that fits inbetween the ship you want to control and the joystick controller.
to be clear, you accept the input as is, but you will add some "inertia" to it before forwarding that input to the ship controller.
using float interpolate action, your target would be the joystick input and you would interpolate your current ship control float to always catch up with the input. Does that make sense?
Bye,
Jean