The 2016 gold medal winners finished third in last season's World Sevens Series, which was cut short because of the global pandemic.
Head coach Gareth Baber admitted they found it tough to live up to the title winning effort last year.
"It's slightly inherent in Fijian culture and certainly the way that we play the game that you're going to get bouts where you don't quite live up to that quality," he said.