Why is my minecraft so laggy?

Ever since i got tu 14 for minecraft ps3 i had so much lag befor uhh got it it was no lag at all now its just mega laggy. Why is it like this and how can i fix it

You can't fix it, they need to patch many bugs. Breaking blocks reappear over and over again. In multiplayer mics sound watery or robotic. Chunks take long to load, even for host. And many more problems. Everyone is experiencing them. Just be patient, it'll work again.