The Hoops are without a win in their opening 10 Premier League games ahead of Saturday's trip to Stoke and speculation about Hughes' future is rife.
But Ferdinand is adamant that the Loftus Road project is a long-term one and people should not panic over short-term problems.
"The criticism our manager is getting is unfair," said Ferdinand, quoted in The Sun.
"We are working hard for the club and trying to relieve that pressure on him. But people really need to get a sense of perspective. Rome wasn't built in a day.
"We have brought in a lot of new players and it takes time to come together as a team. We have had plenty of injuries which means the gaffer has had to change the team even more.
"We haven't had a settled side but we are working hard every day in training and we're confident of turning things around."
The 27-year-old insists his own form has not been affected despite a difficult year dealing with the fall-out over the John Terry race row.
He added: "Despite everything that has happened in the last year, I will not change for anybody. I still prepare the same way for games and I still conduct myself in the same way.
"Nothing will change me as a player and my professional attitude will always remain."