"Of course I'm disappointed with the outcome. We didn't do ourselves justice," said Johnson.
"That wasn't our game we played out there. For some reason we kept lumping the ball forward.
"It was a poor game for us and I didn't recognise what we were doing.
"The pitch wasn't great and it wasn't easy to play good football on it, but it's the same for both teams.
"We didn't deserve anything from the game. We didn't do enough to win it, and that's that.
"The work rate was there but it was a bit misdirected at times. QPR were solid at the back and deserved this win in my opinion.
"This result has dented our hopes, but we've got to look to the next game, try to win it and then see how the other teams around us do.
"Every week it changes in this division."