I never had much of a problem with the camera, but it was my first time playing Rayman 2, so I had no prior experience.
I do remember it being a little screwy, but not a game-breaker for me. Memory is a little fuzzy, so maybe it was worse than I remember. I was able to 100% the game easy, so I dont think it was much of a problem. (To me, at least)
This is a Ubi port though... quality isn't something to be expected. lol