Are you running the sensors.msm8974.so that has the laggy z-axis? Line 12 here: http://piratepad.net/bhP8fbzYgT Edit: reason I ask is that I haven't heard of the issue with that, and was planning on making a "sensorsfix3.zip" with that blob. Edit2: in an attempt to get rid of some logcat spam regarding audiopolicy, I accidentally massively increased speaker and headset volume, as well as mic volume in calls. Coming with OTA support shortly .