Frenchman Kante, one of the pivotal figures in Leicester's brilliant title-winning season, has featured in all eight of Chelsea's league games this campaign since joining from the Foxes in the close season.
Kante added that the new formation has provided him the freedom to roam forward.
"The new system is working well. We have been better with and without the ball, and we have conceded fewer chances," Kante told the club website.
"Personally I like the system too. My job in a defensive central midfield position is to cut off attacks against us, but it has been a bit different in the past two games as I have been able to get forward a bit myself."
Chelsea, who are fifth in the league standings and three points behind leaders Manchester City, host Manchester United on Sunday.
(Reporting by Ian Rodricks in Bengaluru; editing by Amlan Chakraborty)
