McGillvary picked a try in the 26-point win.
“That was probably a bit embarrassing there in the end, even though we won,” McGillvary told NRL.com.
“That is not where we want to be and where we need to be. Today wasn’t great, and we know that.
“[We need to be] a lot better, we need to be on the same level that we played last week, probably even better, just to compete with Australia.
“We have got a week to fix it.”