Lafai's own personal form in 2017 started in a blistering pace, but along with the rest of Paul McGregor's men he has been inconsistent at the backend of the season.
The former Bulldog put pen to paper on a new three-year deal with the Dragons in June and denied as a result he's taken the foot off the gas and become too comfortable.
"It's a domino effect, if one player is off the rest can follow," Lafai told NRL.com.
"We got off to a great start along with myself but feel as though we've lost our way as a whole team.