Unfortunately, yes.
Yes, they should. however, the draw in the first two games for PSG is not good enough. PSG has indeed experienced a slight decline in performance, perhaps due to the lack of good players there. And currently their performance is still unstable. There is some work that Enrique has to fix. The first two matches were failures, even though they didn't lose, PSG class should be able to get full points in those matches. It's probably still early in the season, so at least they still have plenty of opportunities to fix it and take the top position again as long as Enrique can make his whole team work optimally and ignore the skewed issues that might exist at his club.
The combination of teams that is still not going well and maybe like our previous discussion that they have to try to adapt quickly, both the system implemented by Luis Enrique and adaptation with several new players. For the third match, hopefully Luis Enrique will have a special formation and strategy to beat Lens and I hope he includes Mbappe and Dembele at the start of the match, because after all these two players can be a serious threat to the Lens defense if both play faster than starting from the bench.
The pre-season and the of two official Ligeu 1 matches were enough for Luis Enrique to try to see some of his team's weaknesses and in the future matches they should have found a special formation to play. Although there is also no guarantee that in the next few matches PSG will perform much more consistently, Lens has also performed less well in the previous matches and Luis Enrique should be able to take advantage of this to get full points.