Neil Warnock felt his table-topping QPR side would have been a match for anyone in the Championship based on the showing that ended Ipswich's unbeaten start to the season.
Jamie Mackie's brace made it six goals in as many games following his summer arrival from Plymouth before strike partner Heidar Helguson added a third from the penalty spot to seal a 3-0 triumph at Portman Road.
"We played very well, and I don't think anyone could have coped with how we played." said Warnock.
"I knew we had to start well because Ipswich have had a great start to the season and there's nothing better football-wise than an evening match at Portman Road.
"We took the game to them, and I was delighted when the first goal went in because it calmed us down and gave us belief."
The victory sent QPR three points clear after Cardiff lost their unbeaten record at Leicester, making Warnock's side the only team in England's second tier yet to taste defeat.
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