The 28-year-old was positive about his side's performance after a massive victory to open up its European campaign, and insisted that its next game will be tougher
Les Parisiens were making their first appearance in the competition since December 2004, and immediately asserted their authority with a fantastic first-half performance that saw Zlatan Ibrahimovic score from the spot, Thiago Silva notch a debut goal and Alex make it 3-0 before the break.
Despite Miguel Veloso scoring a consolation goal for the Ukrainian visitors, Javier Pastore restored his side's three-goal advantage, firing PSG to the top of Group A.
Jallet picked up on the fact that the lavishly assembled side have finally been able to gel, while insisting that its next match in the group, against FC Porto, will be more difficult.
"We managed to have the edge, in both attack and in defence. Our hard work paid off with a great win," the right-back told UEFA.com. "We managed to raise the bar to Champions League level tonight. Now our trip to Porto will be another stiff test."
Carlo Ancelotti's side returns to Ligue 1 action against SC Bastia on Saturday.