A site that feels quick on office wifi can be unusable in the Link tunnel or a Queen Anne basement.
Where people actually open your site
In the transit tunnel between stations. In a crawlspace with a flashlight. Standing in a driveway in the rain looking at an overflowing gutter.
Those are the conditions the page has to survive, because that is when someone needs you. Eight seconds there loses to whoever loaded in two.
What a page builder actually ships
A builder must handle any arrangement someone might invent, so it loads the entire toolkit up front. A few service pages end up towing a layout engine, a motion library, and an icon set nobody opened.
Publishing trims none of it away. It goes out to every visitor, on every page, over the streets under Aurora included, indefinitely.
Photos straight off the phone
A single shot off a handset runs four to eight megabytes. Ten in a gallery asks a stranger on cellular to pull down about fifty.
Run through a resizer, those ten total roughly four hundred kilobytes and look no different on a phone. Nothing else you can do to a small site helps this much.
Widgets somebody sold you
The chat tab, the spinning testimonials, the discount overlay, the embedded scheduler, the tracking tags, the consent notice. Each rings a different company, and your page stays unfinished until all of them answer.
On a weak connection they drop out one by one while the visitor stares at grey panels. Very few return more work than the delay costs.
Fonts that hide the text
Four typeface files usually means your words stay invisible until the last one lands. The visitor gets a white screen that looks exactly like a dead site.
Two weights, hosted yourself, words showing in a fallback from the first frame. Nobody in this city ever picked a roofer for the lettering.
Test it the way customers use it
Kill the wifi, ride one stop underground, and pull up your own homepage. That result tells you more than any scoring tool.
Three seconds should cover reading your opening line and spotting the number. If it does not, something has to come off the page.