The Armenian international struggled to settle into life at the Westfalonstadion after signing from Shakhtar Donetsk in 2013, but is this season enjoying comfortably his best campaign with the club under the new management of Klopp's replacement Thomas Tuchel.
The 27-year-old attributes the turnaround in his fortunes to the management of Tuchel, and suggested that the Liverpool manager's style of play was limiting the club.
When asked by Bleacher Report to explain his improved form, he replied: "Because of the changes and because I got a lot of confidence.
"When Kloppo was here, we were playing another kind of football, more counter-attacks, more powerful, more pressing.
"When Tuchel came, we started to play a different kind of football. We try to keep the ball more, we try to pass it more and play very offensive football."
Under Jurgen Klopp, Liverpool have won 12 of their 18 Premier League matches, as well as reaching the Capital One Cup final with an aggregate victory over Stoke City.
The Reds also qualified from their Europa League group as undefeated group winners, and they face Augsburg in the first leg of their last-32 tie on Thursday.