[Q] AOSP and derivatives camera performance - or absence of it. topic

Serious question.

How can you i9305 users live with the pathetic performance of AOSP camera ? Please, let me explain.

I have f.e. stock 4.4. I can open camera app, touch no setting, take a picture, and it will be nice. If i install Google Camera, the image will be more or less equal.

Then i install CM11 or 12, doesn't matter. And i open the same Google Camera, and i take a picture on the same conditions as before, and the image and performance ? God damn...

ZSL is inexistent on AOSP, the camera will ALWAYS focus before a shot, unless you tap on the screen and the the shutter button no longer than 500ms after. Wait too long, refocus before shot. Focusing takes 1 second on the i9305, that's a missed shot. And the final image? Dark. Completely unexposed.

Now, i'm not trying to bash any dev, rom, app, or anything, i'm asking you final users, how can you withstand the marvelous of Lollipop, with it's pathetic camera performance ?

P.S. please keep this civil, and i9305 only. I suspect the i9305 and the i9300 differ, at least (probably) on the firmware. There are multiple firmwares for our camera, we all know this...