The 31-year-old told BBC Sport: "Offensively we were very scratchy compared with the fluency we showed against Wales.
"We still need to work really hard in certain periods but sometimes we just tried to push it and it gave France opportunities to get back in the game. I don't think we would get away with that against Australia or New Zealand.
"That is something we will have to focus on this week and it is good that it gives us something to work on and correct for the final."
England and France meet again next Sunday at the Salford City Stadium.