The 22 year old, who has been linked with a move away from Loftus Road, has not fitted in as well this season as QPR adapted to cope with the heightened demands of Premier League football.
"You are never going to change Adel. I don't think we have ever been hunky-dory in our relationship. It is just a different culture that some players have.
"You have to try and fit it into the team situation. We did that quite well last year. It has not worked as well this year because we are playing at a different level.
"We have had to adjust the system that we play so it has been very difficult to get Adel into our system at the moment."