This is a result of Google's decision to not "perfect" this on their web app - but it could be. It's just low priority. Just as there is lag and jittery scroll

This is a result of Google's decision to not "perfect" this on their web app - but it could be. It's just low priority. Just as there is lag and jittery scrolling when loading older posts in the Android native Facebook app, it's not a result of the platform, but a result of poor design, or not putting the effort into that one area of optimization.