Well sadly, if after all that play time you still have problems with the camera, that means it will be a permanent problem for you. Nothing anybody can do about it, and the game won't get fixed either. Not saying anything bad about you. Just that some people get it, some don't, and that's natural and nothing to feel bad about. Game controls and cameras simply can't accommodate everyone's play styles and perks.
I've had some problems with this camera when trying some more precision targeting, which is why I usually work around it through soft targeting and tossing an AOE. For ranged play, OTS view and old manual aiming solves much of it, unless using a controller... When we play these games, one player will get to issues someone else may not have. And since in the case of PSO2, I doubt the development of NG will be stopped long enough to adjust stuff for us here, all we can do is make our feedback known and hope NG will get it fixed.