This release fixes an issue where the default value of updateTicks: 20 was not added to the config.yml. It now allows the range to be 1 - 100 (1/20th second to 5 seconds).
This is how often the menus will be called to update the inventory stuff like the elapsed time.
It should default to 20, or once every second. A value of 1 will make it quicker but only adds lag.