The France international feels the Parisiens will have to continue to make progression, and added that they will not be satisfied until they have qualified for the next round
Goals from Zlatan Ibrahimovic and Jeremy Menez helped PSG to the full three points on Wednesday evening, but Jallet has stressed that the Ligue 1 giants will only be truly satisfied once they book their ticket for the knockout stages.
"We played high up the pitch and with a lot of intensity from the start. More space opened up after the first goal, but they tried to shut-up shop in the second half," Jallet told Uefa.com.
"Even then we could have scored more goals, but we're satisfied with 2-0. We can still improve, though, and we'll only be truly satisfied when we achieve the goal of qualifying."
"It's mission accomplished as we've won the game and kept a clean sheet, even if we could have made things easier for ourselves by scoring more goals.
"If we win at home to Dinamo then we'll have nine points and things will be looking good for the qualification. Only after that will we be able to concentrate on trying to top the group and the potential head-to-head with Porto."
PSG currently sit second in their section with six points from three games, trailing leaders Porto by three points.