Originally posted by Tully__:
If your throttle is showing 110% then you're getting 110%.
What I'm suggesting and the information you've provided confirms is that your joystick (the axes labelled 1X1, 1Y1 and 1Z1 in your conf.ini rts_joystick section) are set up with maximum sensitivity. The sensitivy screen in game only recognises the first controller in Windows game controllers regardless of whether that's the controller assigned to your primary flight controls or not. IL2 Joy Control allows you to adjust sensitivities on other controllers using an interface similar to that built in to the game. I think it likely that this was not the case in your WinXP installation.
When you move the controls and the aicraft manouvers, this almost always causes an increase in drag even for tiny movements. Thus, frequent control inputs slow you down and the larger the input, the more it slows you down.
When your joystick sensitivity is at maximum (all sliders at 100), even very small movements of the joystick can slow you down quite a bit, a 5% joystick movement will give you a 5% control movement. If you have the sliders corresponding to small movements turned down to 10, a 5% joystick movement will only produce a 0.5% control movement.
It's perfectly possible to fly smoothly and quickly with all sliders set to maximum... provided you adjust your flying accordingly. If however you're accustomed to the early sliders being set much lower and you haven't adjusted how you handle the joystick to compensate for them now being at maximum, you'll be slowing yourself down quite a lot in situations where you're manouvering frequently. If this is the case, either use Joy Control to bring the sliders back to something you're used to, or get used to the sliders where they are and try to develop a much more subtle hand on the stick during gentle manouvering.