Default [Q] Steel Series wirelesss game pad

Anyone using steel series wireless gamepad on G2 or for that matter any mobile?
I bought it to play Shadowgun Deadzone but I find its joystick too sensitive to aim.
I did not find any way to reduce the sensitivity (there is an option in game but that works only for touch control).
I sent mail to both game controller support and shadowgun support and waiting for reply.
Is there any way we can change it in android? I've stock rom but its rooted.

Thanks in advance,