no it's only an audio latency. and yes it's that "pop" sound. I can tell it's definitely delayed. not really noticeable to most people though.
Someone mentioned it on the forums how their Android app had a 0.5-1.0 second latency in the sound effect. I haven't deployed an app to Android since Cocoon and never had this issue. So maybe it's something to do with Construct's apk?
Doesn't seem to impact your game at all, but if I was making a shooter I think it would be a problem.