LEDs are at full brightness at 30%.. Looking for modified device handler


Im am using the standard dimmer switch device handler with a string of 30W(total) LEDs and the Leviton DZPD3 dimmer. The dimmer adjust has the LEDs at full brightness at only 30%. I would like to modify the device handler so i get the full range of my slider bar to adjust brightness. It seems like a simple task but I am not a capable programmer and can’t seem to get any modifications to give my desired output. I can’t find any info after searching the forums. Any help is appreciated.