Wales lost 26-19 in their second match in the Autumn International series, with games against New Zealand and Australia still to come.
The interim head coach told BBC Sport: "I have spoken to the players and we are obviously disappointed as a coaching team and group of players.
"We did not have control of possession or in terms of the contact area and that [performance] is obviously not international standard.
"This group of players have been outstanding in training, but when we cross that white line our skills are not up to scratch of international rugby at this moment in time."
Warren Gatland will return to the head coach role for the game against New Zealand next Saturday.