The 48-year-old succeeded Neil Warnock at the Loftus Road outfit in January but has struggled to guide QPR clear of the relegation battle, with the Londoners two points clear of 18th-placed Bolton Wanderers.
Hughes, who will make the trip to his former employers Manchester City on the last day of the season, wants to transform QPR into an established top flight side, mirroring his achievements at Blackburn Rovers.
But the former Wales international conceded that dropping down to the Championship would significantly delay his plans.
“It would slow down the process [of rebuilding QPR],” said Hughes.
“At some point in the future the club would be stronger and in a better position to be successful over a longer period.
“But that will be accelerated if we stay in the Premier League this year. If we’re not able to achieve our goals this year it would be a setback but it won’t change what will happen at this club.”
Former Liverpool striker Djibril Cissé scored a dramatic 89th-minute winner to help QPR seal a vital three points against Stoke City at Loftus Road on Sunday.
Hughes acknowledges his “animated” demeanour on the sidelines during games contradicts the calm approach he strives to inflict on the club in between games – something which will be key ahead of next Sunday’s crunch fixture at the Etihad.
“On the bench I’ll be quite animated but leading into games I’m quite level,” added Hughes.
“It’s important that you build up and taper you’re work towards the end of the week so everybody is fresh in terms of intensity and focus. That’s what you ramp up.”
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