Hey Matth,
Regarding the page performance, it’s not the Content Modal nor our theme is causing that. It’s because of the Responsive Flipbook plugin. It’s understandable that it’s slow because it waits for images to load. Try optimizing your images so they’ll be faster to download. Other than that, we can do nothing on our end to help with that regards.
Regarding the Header, I compared your folder page and your home page and at first, I saw the difference between the top bars of those pages (though I see you just have one header). When I logged in to your site, that might be the time the cache has been cleared so the issue just got fixed.


If there’s a different header issue, please elaborate and it would be best that you provide screenshots.
Thanks.