This article explains the touch mode settings for in the Elo driver

The “Touch Mode” setting has three options:

• “Normal”: Windows click event is generated when a touch-down followed by a touch-up within system defined click area. This is the default touch mode.
• “Click on release”: Windows click event is generated when contact is released (touch-up).
• “Click on touch”: Windows click event (equivalent to a mouse button click) is generated on contact (touch-down) with the touch monitor.