I can't say if Chelsea has improved in their performance or not, it's when the new season starts is when we would know. However, their performance in CWC is impressive and their fate will be tested in the finals when they play against PSG who have destroyed and humiliated top big clubs in various leagues in recent times.
I don’t think anyone will doubt PSG’s performance anymore for now, because they have already proven the point that this is their year. All teams will have to witness them winning, because bro, their performance yesterday was so wild that Real Madrid was forced to start a defending game by bringing more young players onto the pitch. They have seen that there is no way they will be able to meet up to such a goal in the second half, it is somehow impossible.
Although the next team that will face such terrible performance is Chelsea, which is in the final, and if Real Madrid seemed like a small team against PSG, then Chelsea will just be like a newbie playing a game with a legend. It’s not funny, though, but this game will be too hot for Chelsea to handle.