Parallax on Mobile Delay Issues

Greetings WPMUdev!
Hope today is well for you.

I noticed an issue I'm having with the parallax background for regions. On mobile versions of the website, the parallax image is delayed and not scrolling smoothly. A bit "clunky" to choose a word. A little difficult to give an example via screenshot and don't have a way to do a screencast at the moment.

I was wondering if this was a common/known issue? Or is this site specific? Hope that there is an easy solution to get things rolling smooth!

I'm using Google Chrome on Android OS if that helps at all. Also Support is enabled if needed. I noticed this on pages with the parallax headers (Most of them).

Some examples are:
& others.

Thank you for the continued support!

Much Love,
Ciro Bey