I know that this has been said before in other threads, but it has become so incredibly systematic and annoying that I thought a dedicated thread would be in place.
This morning at CDG 2E:
-30 minutes traffic jam on the airport
-25 minutes wait at check in
-35 minutes wait at passport control
-15 minutes wait at security check in terminal M
Complete chaos: People stressing, climbing under ropes, shouting at staff, jumping the que at various locations, sighing, cursing, stampeding, and pushing ahead of me,
In Sky Priority! 
How much time should one without Sky Priority allow? 4 hours? 5 hours? And wearing an armor suit may be useful too. It is a complete disgrace, and it seems to be getting worse. Yes I have arrived well enough in advance to have a quick coffee in the lounge and to write this, but still it’s always very unpleasant and stressful, and I am getting sick and tired of it, including the people who don’t know how to behave. /rant