How can I control the tilt speed?

Hello everyone.
I have confused in this problem.
Today my teacher try to ues the mouse-wheel to tilt the earth.But the he thinked the tile speed is too fast that he coudn’t to control well,he asked me to change the tilt speed to make tilt slowly.I don’t konw how to do it.
thanks all your advices!! love you!

You can see all the exposed properties for controlling how the camera is controlled through user input here: You may need to disable the default controls and implement your own if the options you want are not exposed in that class.