A feature request:

The Spinner control of JavaFX has a 750ms second delay between repeats when
holding down either arrow button with the mouse. This is a pain (too slow).
One can use the keyboard to receive satisfactory repeats, but using the mouse
to spin to a certain number is a pain with that 750ms second delay.

Please change the default to match the behavior of Swing's JSpinner
component. (I.e. edit INITIAL_DURATION_MS in SpinnerBehavior.java)