Phone Camera/Video Recording Problem (well it might be a problem)

I have an Xperia Z and my finance also has a Xperia Z.

My phone is on the latest PacRom (KITKAT) and the 2nd one is running the latest stock (JELLY BEAN).

I was taking some pictures and videos and notice the quality to be quite 'low' where as her pictures and video quality where quite high.

The video audio quality seems 'muffled' on my phone and again, on hers, very clear.

Is this a problem anyone else has found using this rom? Or is it just me? I don't take that many pictures but I would like them to be of decent quality when i take them.

Thought id add this in:
The settings in the camera are all set to high so its not a setting issue

Thanks for your help.