Head coach Sabri Lamouchi knows improvement is required after Nottingham Forest lost their opening Championship match of the season.
The Reds are aiming to once again mount a promotion push, after agonisingly missing out on the top six last time around.
But they did not get off to the start they had hoped for against QPR, falling to a 2-0 defeat at Loftus Road.
Tobias Figueiredo conceded a second half penalty, which was converted by Lyndon Dykes, before Ilias Chair wrapped up the win in added time.
“We have to get better - with the ball and without the ball,” said Lamouchi.
“Last year, our first quality was to defend, to be aggressive and compact, all together.
“The first mistake we made, we conceded.
“We need to be more focused and more consistent.
“And we need to be more efficient in both boxes, because we didn’t give them too much - but enough to lose the game.
“And we created a lot, but we didn’t score.
“It was a bad result and we are disappointed, of course. But we have to work on it.”
It could so easily have been a different final result, however, had the Reds made the most of their chances.
On another day, in another game, Lewis Grabban could have notched a hat-trick, while Sammy Ameobi went close and Ryan Yates hit the bar.
“Lewis Grabban could have had a few goals. But we know him, when he is 100 percent he will score,” Lamouchi said.
“He is probably one of the best in front of goal.
“He is not ready. He missed two clear chances - and with Lewis we know he can easily score those kind of goals.
“We need to be more pragmatic and not give anything away defensively, because we gave them the three points.
“After you have lost the game, you can be disappointed about the performance and have some questions about your line-up.
“We need to think about that.”
