Horizontal and Vertical view axis assignment in joystick keymapping have been missing since 2.0 update, and it's absence is frustrating.
Gamepad had these mappings. and even had a greater quantity and quality of choice in comparison to Joystick keymapping, but the camera reacts like the camera settings used in mouse and keyboard control.
Please revert the joystick configuration submenu and joystick keymapping submenu to that of 1.9.
or;
Give the players access to camera config.
kthxbai