Cav is fine, get over it...we sacrifice HP if we want formula horses, and i bet most of you forget the lance angle nerf? Cav is a bitch to face, yeah, but still, when i meet some good player on my horse, no matter what i try to do, i am the one getting killed. There are few people like this, but hey, if they can do it, anyone can.
Just pay more attention to your surroundings and cav is not that big deal.