It would be nice if you could set the camera to control pan and tilt speed as a function of zoom, such that when the camera is zoomed in the pan/tilt speed is reduced and when it is zoomed out the pan tilt speed increases.
There is a setting that functions like you described. The Setting is called SpeedByZoom and it is in the P/T/Z sub menu. This would only apply when you are controlling the camera with the IR remote though.
So if you are using a hardware based joystick controller or our free camera control software for example, that setting would not apply. That is because those control interfaces send the movement commands with speed values built in. So the speed will always be determined by the value you have set in the control interface. So if you will be making fine adjustments to fully zoomed in shots setting the speed value low can help.