Leicester's defence of their Premier League title has even made Claudio Ranieri "very, very angry" so this was an emphatic response to those early-season wobbles.
This was only the champions' third league win since Ranieri lifted the trophy and it felt like a return to last season as they streamrollered Crystal Palace with a performance of intensity, resolve and swagger.
While the last campaign was a sporting miracle that nobody could have foretold, this one has been a slow-burner, despite their flawless record on their debut in the Champions League.
Even Ranieri temporarily shed his affable grandad persona earlier this week by registering his displeasure, yet this result will undoubtedly ease any lingering tension, at least for another week. They even managed it without Jamie Vardy, who started on the bench after struggling to overcome a groin problem picked up in Tuesday's win over FC Copenhagen.
Ahmed Musa and Christian Fuchs secured their first goals for the club - the latter's goal was a screamer - but it was the scorer of the second goal, Shinji Okazaki, who proved his enduring influence to this Leicester team.
Okazaki has spent much of the season so far as a substitute yet he remains a hugely important member of Ranieri's squad, setting the tone with his commitment and providing the link between attack and midfield. He deserved his goal and will certainly have provided Ranieri with a headache ahead of next weekend's trip to Tottenham Hotspur. After the last few weeks, this was a headache the 65-year-old will welcome.
"This was the best performance of the season so far," he said. "I said that maybe this match would be the kick-start for our league season and it was important to win.
"This is the model of last season - concentrated and doing our job. I want to rotate my players and now everybody is ready to fight for their place on the pitch. I know what Okazaki can do. He works hard and links the team."
Ranieri had demanded a response to their domestic struggles and Leicester should have capitalised on a gift from Palace goalkeeper Steve Mandanda after just 90 seconds.
His attempted clearance went straight to Okazaki but, with the Frenchman well off his line, the City player chipped the ball over his head and well wide.
Palace quickly settled, with their pace on the flanks frequently disturbing Leicester, and Christian Benteke powerfully headed Martin Kelly's delicious cross onto the crossbar. But when Riyad Mahrez finally arrived in the game, the momentum shifted to the home team. First he bamboozled Martin Kelly with a 30-yard run, ambling his way into the penalty area and sliding in a cross which was cleared.
Mahrez was involved again 10 minutes before half-time when Leicester almost took the lead, with the Algerian's shot taking a deflection off Okazaki's head and arcing over the bar.
But the breakthrough came in the 42nd minute with Musa's first goal since his pounds 15?million move from CSKA Moscow. Islam Slimani's, strength created space on the edge of the area for Musa to drive a shot into the corner.
With Palace continuing to threaten sporadically, the second goal was always going to prove crucial. Okazaki provided it in the 63rd minute with a clinical low finish.
Vardy was introduced for the final quarter of an hour but the third goal came from an unlikely source as Fuchs crashed an unstoppable half-volley from 22 yards.
Cabaye did slide home a consolation with five minutes left, much to the annoyance of Schmeichel, but Palace have now lost two in a row.
Alan Pardew, the manager, said: "We weren't far from our best but they were good. I think most teams are going to find it difficult here."