Yes there is something with the joystick slider control that makes DBP think that you have maximum throttle altough you have the slider in the min position. Good to know that there is nothing wrong with my yoystick. If you press 'Y' the simulation goes into keyboard mode, if you think the joystick is too sensitive.
If you just touch the slider when the level starts the pitch comes to a minimum and the heli rests at the ground, the controls are very sensitive just as a remote controlled chopper without gyro.
About the graphics, the rotorblades are animated in the same model so it is next to impossible to make them realistic, maybe if one change the animation rate depending on how much the chopper turns.
Well at least you gave it a try !
Greetz