The default duration that the mouse has to be pressed on a Spinner control arrow button before the value steps is modified in JavaFX 11. Two new properties, "initialDelay" and "repeatDelay", have been added to configure this behavior.

initialDelay: The duration that the mouse has to be pressed on an arrow button before the next value steps. The default is now 300 msec.

repeatDelay: The duration that the mouse has to be pressed for each successive step after the first value steps. The default is now 60 msec.