These are my settings in Logitech Profiler The handling is very hard, any suggestion?

X-Axis Sensitivity 100% Deadzone 0% Range 100%
Z-Axis Sensitivity 100% Deadzone 0% Range 100%
Twist Sensitivity 100% Deadzone 0% Range 100%

Edit the Dosbox%.conf with notepad and make:

[joystick]
timed=false
swap34=true

And recalibrate the joystick in the game after that.
Also set the sensitivities back to 50% and use some deadzone for X,Y and rudder, I'd say 10% or so.

My WC4 install doesnt have anything dosbox related in the install folder

100% sensitivity is not good, lower it a bit, also add a bit of a deadzone if possible (5%-10%).
Wing Commander is already rather "twitchy" by itself, setting sensitivity too high and no deadzone is a recipe for a ton of unwanted movements.