Your page has an unusually large number of HTML elements. Browsers have to track and manage every element on a page, and very large pages slow down scrolling, animations, and interactions — especially on older phones.
On WordPress
Page builders are the main culprit — Elementor, Divi, and WPBakery all generate verbose HTML. Consider switching to the leaner Gutenberg block editor for pages where performance matters. Also audit widgets and shortcodes that generate large amounts of HTML.
On Shopify
Collection pages that display all products at once are a common source of DOM bloat. Enable pagination in your theme settings under Online Store → Themes → Customize → Collection pages. Also check for apps that inject hidden HTML into every page.
SiteSprout scans your site, tells you which issues you actually have in plain English, and keeps watch so nothing breaks silently.
Scan your site free