hi!
i think fastern9 1.1.4 is related to a problem where stock camera app stutters while taking hd video. Stuttering is both visible on screen and later on recording, while after uninstalling fastern9 the preview of a recording actually performs worse, skipping frames, but recorded video is smooth.

Also, sound of android angrybirds games installed with apkenv might be affected too.

Uninstalled for now, camera is important.
Cheers! Keep it up!