Just checked, and Edirol call this setting "Fast Processing Technology". Your manual should help 
Well what can i say i would never have sorted that out in a million years , looked up fast Processing Technology in the manual like you said ,and all i had to do was to go in Edit then system and press the Enter button and the option ,on or off came up ,so clicked on off and one more point i should mention i was foolishl enought to power the Edirol from my pc
usb and took the midi cables to my Amiga ,well you can imagine what was happening the signal was going to the pc ,so powered up from some batteries untill i can get hold of a powerpack and wo the Edirol burst in to life ,the Amiga,s singing and a dancing to a merry tune ,truly grateful to you my friend ,best wishes Brian.:laugh1::laugh1::laugh1::laugh1::laugh1::laugh1::laugh1: