A site that feels quick on office fibre can be unusable on a flat roof in the glare or up a dirt drive in the Valley.
Where the page actually gets opened
Not at a desk. Up a dirt drive in the Lower Valley where the bars drop to one, or standing in front of a swamp cooler that has just given up.
That is where your page is actually measured. Eight seconds in the Lower Valley and the outfit already working that block has already taken the job.
What a builder quietly includes
A builder cannot know which features you will use, so it sends all of them. A handful of evaporative cooling outfit pages ends up carrying a layout engine, an animation library, and icons nobody placed.
Going live strips none of it out. Everybody who lands on your swamp cooler page keeps paying for the parts you never touched, indefinitely.
Photographs straight off the handset
Straight off a phone, one photograph runs four to eight megabytes. A ten-image gallery asks somebody in the Lower Valley to pull down fifty.
Resized properly those ten come to roughly four hundred kilobytes and look no different. For an El Paso evaporative cooling outfit nothing else pays off this well.
Everything somebody bolted on
Chat tab, rotating reviews, discount overlay, booking iframe, analytics tags, cookie notice. Each rings a different company before your evaporative cooling outfit page is allowed to finish loading.
In the Lower Valley they give up one after another while your customer watches empty grey boxes. Almost none of them earn back the delay.
Sun and heat make the phone worse
A handset in this sun gets hot enough to throttle its own processor, and the screen is barely readable at midday regardless. Both happen exactly when your customer needs you.
A page that was merely slow in February becomes unusable in June on the same device. High contrast and low weight are requirements here, not refinements.
Check it honestly
Turn the wifi off, get yourself to the Lower Valley, and load your own homepage while a June afternoon at a hundred and five is going on.
Three seconds should cover reading the first line and finding the number, even with a June afternoon at a hundred and five going on around you. If it does not, something has to come off the page.