Why is my website slow, and does it matter?

Ascent Vision · Published October 24, 2026

A slow website often has a cause an owner can see: large photos or video, too many add-ons, or a hosting plan that is too small. It matters because visitors often leave slow pages. Google's web.dev guide says fast sites engage and retain users better than slow ones, and cites a BBC finding of an additional 10% of users lost for every additional second of load time. Test the pages that matter, then ask your builder what is slowing them.

Does it matter?

Usually, yes. Google's web.dev guide says websites that load quickly "engage and retain users better" than slow ones. It adds that people tolerate poor conditions on a site for only so long before abandoning it.

One example it gives is the BBC, which it says lost an additional 10% of users for every additional second its site took to load. That is one large organization, not a rule for yours. For a service business, a possible cost is a visitor who gives up before finding your phone number or form.

Google's page experience guidance says its core ranking systems look to reward a good page experience, but that Google Search seeks to show the most relevant content "even if the page experience is sub-par". The main reason to care is the visitor, not a shortcut to a higher spot.

Causes an owner can often see

Heavy photos and video. Photos straight from a phone are often far larger than a page needs. The related answers on photos and on video cover keeping both light.
Too many add-ons, such as chat boxes, pop-ups, sliders and tracking tools. Each can add to what a page must load. web.dev says that when sites ship lots of code, browsers must use megabytes of the user's data plan to download it.
A hosting plan that is too small. A basic plan can respond slowly, especially when many people visit at once. The related answer on hosting covers what to check.
Phones. web.dev notes that mobile devices have limited processing power and memory. A page that feels fine on an office computer can drag on a phone.

A quick check

Open your home page, your main service page and your contact page on your phone, on mobile data rather than Wi-Fi. If you notice the wait, visitors likely will too. The related answer on phones has a longer checklist.
Try Google's PageSpeed Insights at pagespeed.web.dev. Google says it reports on a page's user experience on mobile and desktop and suggests improvements. The report uses technical terms, so forward it to your builder.
Do not chase a perfect score. Google's page experience guidance says Core Web Vitals scores are meant to help you improve your site for your users overall, and that trying for a perfect score just for SEO reasons may not be the best use of your time. Google's PageSpeed Insights page says the tool includes a Core Web Vitals assessment.

What to ask your builder or host

These questions help whoever builds or hosts your site tell you what is going on. No one can promise that a faster site brings more inquiries, so judge the change by the inquiries that follow, not by a score.

What is making my slowest pages slow?
Which add-ons are on the site, and which could go?
Are the photos and videos sized for the web?
Is my hosting plan big enough for the site?
Can you show me the same pages before and after, on a phone?

Sources

Websites, upgraded or built

Most businesses do not need a new website. They need the one they have to load fast, say clearly what they do and ask the visitor to take one step.

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