This time he looked in better physical shape and certainly quicker in terms of hand speed. But perhaps more important was the stunning way he finished it. Crowds and television audiences like knockouts and a few more of these sorts of performances won't do any harm to his reputation and drawing power.
This was his second fight in the United States after his alliance with American promoter DiBella, the New Yorker who also promotes WBC heavyweight world champion Deontay Wilder.
At 1.96m, the 28-year-old Fa is a good size for a heavyweight - taller by two centimetres than his Kiwi rival Joseph Parker, the WBO world heavyweight champion whom he famously beat as an amateur.
Fa's aim is to continue to build his profile in the United States while upping his ranking with the WBO organisation before a possible all-Kiwi fight against Parker.
"If he [Parker] still has the belt, it would be a great domestic world championship fight in New Zealand," Fa told TVNZ recently.
Fa's victory in a bout scheduled for eight rounds was the second of four fights televised by the Showtime network, an event put on to highlight the talent of a new generation of boxers.