Out of all the camera apps I tested (Google Camera, Moto Camera, Fv-5 lite, VSCO) the only app to not have any shutter lag was the Snapchat camera. Random. The shutter was instantaneous and even passed the hand test. Granted the quality is lower and the file size is a tenth of a normal image but I figured i'd put this out there to see if anyone else experiences this/ knows what's going on.