"Fast" on a store doesn't mean a good Lighthouse score. It means the next tap feels instant — the product page opens, the size drawer slides, the cart updates — and customers never have to wonder whether it worked.
That feeling comes from a short list of things, and most of them are worth understanding even if you never touch the code.
What actually makes a store feel fast
Three things, roughly in order of impact:
Images. On nearly every store we've worked on, images are the single heaviest thing on the page. A 2MB hero image does more damage to perceived speed than anything else. Orbit resizes, compresses, and serves images in modern formats automatically, but you still choose what to upload — uploading a 6000px product photo when the display is 800px is extra weight we can't undo.
Time to first interaction. There's a moment between "page shows up" and "page responds when I tap". If that gap is even half a second, customers think the site is broken. We prioritise getting the page interactive over packing the first view with everything.
The second click. The first page load is mostly out of the customer's control. But once they're on your site, every subsequent page should feel near-instant. Orbit pre-fetches linked pages in the background when you hover or tap near a link, so the navigation feels like a native app.
What you can control
Upload sensibly sized images. Don't add five different tracking scripts (each one is a small tax on every page). Keep your homepage from becoming a layered collage of motion and autoplay video — a clean, focused homepage loads faster and converts better anyway.
That's most of the work. The rest is platform.
Where we're honest
Performance depends on your catalogue, your theme, the apps you add, and the device your customer is on. There's no universal promise. What we will do is give you a store that starts fast out of the box, and flag the things that would slow it down before they ship.