Sections of page not loading properly on mobile

Been designing this website for a while using a mostly client-first approach. When trying to load the site on my phone it takes 3-5 seconds to load sections of the page, sometimes failing to do so and refreshing the page.

On desktop the performance is great with a 99 score on lighthouse, however, on mobile it shows a relatively lower score of 72, with the main issue being outlined as “Largest Contentful Paint” and it’s telling me to “Eliminate render-blocking resources”.

Hoping someone could take a look and try to determine where the issue lies, thankyou!

Here is my site Read-Only: