Unlike a blog, which can be loaded from a cached version, store pages like your cart, checkout, My Account page, or any logged-in page are unique to each customer. This means they must reload every time someone views the page.

When your WooCommerce store speed isn’t performing, it’s likely due to 1 of 3 things. The server takes too long to build the page, the page is too heavy once it loads, or the page can’t be served from cache at all, so the server builds it from scratch every time. Here’s how to diagnose what’s happening and fix the issue. 

Run a product page and your checkout page through PageSpeed Insights. The “Discover what your real users are experiencing” section shows field data from site visitors.

The 3 numbers that matter are LCP (how fast the main content shows up; aim for under 2.5 seconds), INP (how fast the page responds to a tap; under 200 ms), and CLS (how much the layout jumps around; under 0.1).

Once you have these details, copy the report into Claude (or your preferred AI tool) and ask: 

Go to Tools → Site Health → Info → Server. We recommend PHP 8.3 or newer. Each major PHP release has been meaningfully faster than the last, so just keeping it updated means improving your speed. Most hosts let you switch versions from their dashboard, but be sure to take a backup first.

HPOS is important because it speeds up WooCommerce order management and improves store scalability when you start to get more orders coming in.

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