Why do some cartoons seem fake now days?

I was watching a little bit of cartoons on Nick Jr today just to see how cartoons have evolved over time since I was a kid growing up in the 90s watching shows like Doug, Rugrats, Ren and Stimpy, Cat Dog, etc, and the cartoons now days suck. There was this show, with a goofy looking robot on it I was watching today, and I think It's called Yo Gabba Gabba. Anyways, the actors that played the characters were just shouting and sounded like they were being sarcastic, and the way the show was made, made it seemed like when the actors were talking, it was like they were talking to someone who has trouble hearing or acting like the person watching the show was deaf, the way the actors shouted out what they were acting. Do you get what I'm saying ! The vibe I get from the actors on cartoons now days seems like they hate what they are doing, and they act like they are drug addicts or something. It seems like the show is geared towards teaching kids how to be sarcastic and an A$$hole, and just seems fake, compared to the shows when I was a kid with good lessons, and plots that are actually worth watching.