Delay after clicking links

On the mobile version of my site, on iOS, with Safari and Chrome, there is a significant delay between the time a link or button is clicked and the time the linked page loads. Sometimes the link doesn't work at all (randomly). When the link is clicked, the nav hamburger appears and then fades (menu not expanded though). If I click a bunch of times, it will sometimes work.

Any clues?

https://www.wayfarenursing.com/new-home

I have been able to isolate the problem to index pages.