Hey Paul,
It’s because of the Hummingbird plugin. It disrupts the loading of the scripts of our theme and possibly other plugins so it doesn’t work well.
Please contact the Hummingbird plugin support or refer to the Hummingbird plugin documentation to learn how to exclude inline JS scripts and scripts of a theme particularly this folder wp-content/themes/pro
.
Also, before reporting an issue to us, please first try all of the solutions listed in our Troubleshooting Artcle here: https://theme.co/docs/common-issues
Most of the issues we encounter are caused by 3rd party factors.
Once you’ve resovlved the Hummingbird conflict and you’re still not happy when the text would display.
Please adjust the Scroll Effects of the Content (actually a Div element)

Try 5% for Top and 1% for Bottom. They’re currently set to a high value.

Thanks.