It is a uplifting read so let us rejoice.
To read it go here-
http://www.androidpolice.com/2015/11/13/android-audio-latency-in-depth-its-getting-better-especially-with-the-nexus-5x-and-6p/
The developer of G-Stomper also wrote a good one about half a year ago that is a great read as well-
http://www.musicalandroid.com/articles/audio-output-latency-on-android-by-planet-hcom