It depends on how you rate this game... PSG looked much weaker than Bayern, they had a lot of problems in defense, but they were able to win and get to the semifinals! Now they also had a lot of problems in defense, and Man City took advantage of that and were able to win the match! That's why they played much better than PSG... This is obvious to me!
In addition, PSG ended early in the game, with a more vigorous entry and ended up surprising City. But after City organized in the second half, they did not give PSG any chance.