Find the real causes, not a score
Render-blocking app scripts, theme code that loads everything up front, oversized images, and fonts that hold the page hostage, each one tied to the sales the delay is costing.
Shopify speed optimization
Shopify speed optimization, for real.
Scan your store free and see exactly what is making it slow, ranked by the sales each delay is costing. Every fix arrives as a pull request you review before anything ships.
Plenty of speed gigs inject a script that fools PageSpeed and changes nothing for real visitors. Mimetic finds the actual cause and sends it as a pull request you read before anything ships.
Built by a team from
After we fixed their checkout and cleaned up conversion tracking that was overcounting 10x, monthly purchases rose 48%.
EXAMPLE FINDING
High impact
The page takes 5.6 seconds to show its content
Your main content takes 5.6 seconds to appear, which Google rates "poor". The store downloads over a megabyte of code and images before anything renders, so shoppers watch a half-built screen and leave before a product loads.
Revenue at risk
$1.5-4k/mo
Affected sessions
5,120
Conversion after fix
↑ +2.1%
Fix available · ready to ship
Speed fixes you can read before they ship.
Shopify speed optimization has a trust problem. Some cheap services inject a script that detects PageSpeed, GTmetrix, and Lighthouse and serves the test a stripped-down page, so your score jumps to 90 while real shoppers get the same slow store. Shopify has publicly warned about exactly this. Mimetic works the opposite way: it measures what shoppers actually experience, finds the specific causes, and ships each fix as a pull request you read and approve before it touches your theme. Nothing is hidden, because everything is a diff.
Every change is a reviewable diff
Fixes arrive as pull requests against your theme. You see exactly what changes and why before you merge, and you can revert any change the same way.
Measured like a shopper, not a test
The scan loads your store the way a phone on a normal connection does. If the number improves, it improves for the people buying, not just for the tool measuring.
Frequently asked questions
Why is my Shopify store so slow?
Usually accumulation, not one villain: every installed app adds scripts even after you stop using it, themes ship features you never enabled, and images get uploaded at full resolution. The scan identifies which of these your store actually suffers from and what each one costs you, instead of guessing from a generic list.
What is a good Shopify speed score?
Shopify reports a Lighthouse-based score, and most healthy stores sit in the 20 to 40 range, because the score punishes app-heavy storefronts. Chasing 90 is usually the wrong goal. What matters is how fast a shopper on a phone sees your product and can act. Fix the delays shoppers feel, and the score follows.
Can a speed optimization service fake my score?
Yes, and some do. A known scam injects code that detects speed-test tools and serves them a stripped page, so the score looks great while customers see no change. It is one reason every Mimetic change ships as a pull request: you can read the diff and see there is nothing hidden in it.
Will speed fixes break my theme or apps?
Nothing ships without your review. Each fix is a separate pull request with the reasoning attached, previewed against your live store, and revertable on its own. That is a deliberate contrast with services that edit your theme directly and leave you to discover what changed.