When Youngs was asked whether this was England's best form since Jones took charge, the 29-year-old told reporters: "From what I remember since I've been involved with Eddie, yes.
"It's probably not higher intensity, just more consistent with it. Maybe that's maturity, personnel.
"If you're 30-8 up against France at half-time you are doing something right. There weren't many mistakes."
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England's next match is a trip to Wales, who are also unbeaten, on Feb. 23 and the clash in Cardiff is billed as a potential title decider that can give the winner a chance to win the Grand Slam.
"Wales have had a good run, we are going to embrace and enjoy the big two-week build-up," Youngs, who has 82 England caps, said.
"This is what the championship is about, it always comes down to certain games. France was a championship decider, the same in a fortnight's time."
(Reporting by Rohith Nair in Bengaluru; Editing by Alison Williams)
