Here I disagree.battery drain may be because of the Gapps,but the lag,the audio sluttering are due to Sony fault,not to mention that they persisted in the leaked build,people reported,nobody listened to fix them.Plus you are telling me that your camera takes 4+ seconds to start due to Google fault?This is here since the 4.1.2 and it will remain here it seems forever.
I didn't say that camera starts 4+ seconds.. And my camera opens just fine.. No probs with it since 4.1.. And audio stuttering is there in original 4.4.2 too.. In case u haven't read in the internet.. Google for the bugs of 4.4.2 and u will know all kinds of bugs.. And about lags, its kernel related.. Sony probably are still working on the kernel and its likely for XZ to get 4K video recording.. And its blobs are also inside the kernel.. So give them time.. Obviously they have listened to all the people complaining and they probably are working on it right now.. And if u must know, XZ KK is way more stable than Z2's KK.. :silly: