0.9 s
12 ptsToo heavy
The brand store. Seconds hide in media, theme JS, apps and tags. The work is a page-weight diet.
Shopify speed
optimization
Shopify’s servers are already fast. Your theme, apps and media are what’s slow, and no one-click booster fixes engineering problems. We do.
Shopify Plus Partner
55+ Shopify certifications
Klaviyo Gold Partner
Email, SMS & CDP
Award-winning agency
3× eCommerce excellence award
ISO certified
9001 & 27001
Baymard & CXL certified
Scrum Alliance certified
Trusted by brands globally
Every slow second is quietly on your payroll
On mobile, load time decides bounce, conversion and how far your ad budget stretches, before anyone sees your products.
Buyers don’t wait, they bounce
Most mobile visitors abandon pages that drag. They don’t complain, they just never appear in your analytics.
Google ranks what it measures
Core Web Vitals feed rankings, and Shopify hands you the real-user data in your own admin.
Paid traffic pays twice
Every click that bounces off a heavy page is spend with no chance to convert.
Slow pages lose your tracking
When visitors act before pixels load, conversions vanish from Klaviyo flows and ad attribution.
Why Shopify stores get slow
Not because of Shopify. Because of what got installed on top of it.
- 1
The app pile
Thirty apps, each injecting scripts onto every page, whether that page uses them or not.
- 2
Ghosts of apps past
Uninstalled apps that left their code behind. It still loads, for a feature you removed a year ago.
- 3
Six-thousand-pixel product photos
Full-resolution uploads displayed at a fifth of the size, on phone connections. Half your page weight, one folder.
- 4
The feature-rich theme tax
Premium themes shipping JavaScript for every feature they support, including the twenty you’ll never turn on.
- 5
A tag for every tool
Pixels, heatmaps, chat, review badges, popups, each one tiny, together the slowest thing on the page.
- 6
Collections that buckle at scale
Filtering, swatches and metafield rendering that were fine at 200 products and crawl at 20,000.
Two kinds of slow store, two kinds of fix
A content-led brand store and a 20,000-SKU catalog don't slow down the same way, and paying for the wrong fix is expensive.
Too much work
The catalog store. Weight sits in filtering, metafield loops, discovery apps. The fix is Liquid engineering.
Find out where your seconds go
Most stores are a bit of both. The audit says which, and where the budget goes.
How we speed up Shopify
Measured at the start, proven at the end, guarded after.
Five money pages
Home, collection, product, cart and landing, measured the same way before and after.
- 1Measure with Shopify's instruments, plus oursShopify's real-user Core Web Vitals, Lighthouse lab scores and a full waterfall of your five money pages.
- 2Attribute every script to its ownerEvery app and tag named with its cost in milliseconds, plus the dead code previous apps left behind.
- 3Cut the free weight firstDead app code deleted, images re-pipelined, tags trimmed, scripts deferred. The fixes needing no redesign ship first.
- 4Scope the theme decisions with numbersIf the theme is the ceiling, refactoring or rebuilding is a separately priced call you make with the math in front of you.
- 5Guard the resultMonitoring every 5 minutes, a page-weight budget, and every new app checked for its speed cost before it ships.
The technical work, named
No “advanced optimization techniques”, just the actual work.
Section and snippet refactoring, render-blocking code untangled, unused theme features stripped, JavaScript loaded only where it runs, and Online Store 2.0 used the way it was meant to be.
Every installed app’s frontend cost measured, leftover code from uninstalled apps removed from theme files, script injection replaced with theme app extensions where vendors offer them, and the app list weighed against revenue.
Images sized and served correctly through Shopify’s CDN, responsive sizes matching what’s actually displayed, lazy loading below the fold and never on the hero, font loading that doesn’t flash or block.
Third-party tags audited and governed, load order fixed, and where tracking weight fights conversion data, server-side tracking so pixels stop taxing the page at all.
Filtering and swatch logic engineered for large catalogs, metafield rendering optimized, and pagination that stays quick at any depth.
Shopify hosts checkout and it’s fast by design. What adds weight is what gets attached to it, checkout UI extensions and tracking scripts, so we keep the money path lean.
The app audit, every app itemized
The average store runs 25+ apps and can't say what a single one costs. Our audit ends that, including the ghosts of uninstalled ones.
MeasuredScript weight, load time added and which pages each app runs on, in milliseconds and kilobytes.
Weighed against revenueEach app’s speed cost next to the job it does, so “is it worth it” becomes a number.
Verdicts, not vibesKeep, configure, replace with a lighter pattern, or delete, with dead code stripped from theme files.
You decide, we executeNothing is removed without your sign-off. Most stores drop a third of their script weight.
A line-item report, per app
Every installed app, its measured cost, and what it does for the business. No app is removed on our opinion alone.
Hydrogen and headless, when it's actually the answer
Huge catalogs, heavy internationalization and app-like storefronts genuinely need it. Most stores don't, and we'll tell you which you are.
Never by default
Headless trades the theme editor and app ecosystem for control. That trade has to be worth it on your numbers, not on a trend, so we show you the math first.
PassedThe honest threshold
Most stores get fast through theme and app work, at a fraction of headless cost.
When it pays
When rendering outgrows Liquid, Hydrogen and the Storefront API deliver app-grade speed.
Speed that survives the next app install
The typical optimization gig ends at the invoice, and the store is slow again by the next campaign.
A page-weight budget with teeth
Thresholds in writing, and every future app, tag and feature measured against them.
Watched every 5 minutes
Real pages monitored around the clock, so a regression is our alert, not your surprise.
Every release, speed-checked
Performance review runs in our quality gates, so a page-dragging section is caught early.
BFCM-ready on purpose
Apps, tags and theme get a pre-peak audit, so the store meets Black Friday already trimmed.
Stores we keep fast
Not lab demos, live Shopify stores through real peaks.
Perishable seafood, a store where slow literally spoils
- Kept fast and dependable through years of peaks
- Checkout path and delivery scheduling, lean by design
An Apple Premium Reseller across multiple markets
- Premium-brand storefronts held to premium-brand speed
- Financing built as custom payment apps, not bolted-on widgets
Personalized gifts at scale, replatformed and kept quick
- A full replatform to Shopify, kept fast since going live
- Personalized items and gift sets without page drag.
Professional beauty in 40+ countries
- Seasonal launches shipped without speed regressions
- Campaign pages that arrive fast enough to matter
What partners say about us
Appreciate everyone’s hard work and effort in getting us there!
Alex Brynou
Director of Systems Architecture
From a complex Magento setup to a clean Shopify build, Magebit delivered. Personalization, gift sets and inventory all just work, and the site is better for it.
Matt Rhys-Davies
eCommerce Director
Within just two to three months, they resolved issues that previously seemed unresolvable.
Tim Johnson
CTO
Shipping fresh seafood leaves no room for a site that wobbles. Magebit keeps ours fast and dependable, and they feel like part of our own team.
Rob Gundermann
CTO
Why ambitious brands choose Magebit
Partnerships, certifications and awards earned build by build, and confirmed by the platforms themselves, so you know the depth is real before the first line of code.
Shopify Plus Partner
An official Shopify Plus Partner, confirmed by Shopify themselves.
55+ Shopify certifications
Across development, POS and solutioning, on your store daily.
Award-winning solutions
Innovator, World Traveler and eCommerce Excellence awards at the industry's main events, and more.
Baymard and CXL certified design team
UX grounded in large-scale eCommerce research, backed by Baymard and CXL training.
ISO certified
ISO 9001 & 27001 for quality and security, independently audited yearly
Scrum Alliance certified team
Truly agile team that moves and adapts faster than your typical agency.
3× eCommerce excellence award
Recognized year after year at the industry’s main events.
Learn more
Your theme knows where the seconds went
Merchants show me a speed-booster app and a store that’s still slow. The seconds are in the theme, apps and images, and finding them is engineering, not magic. Send me your store.
Reviewed by Arturs Kruze
Co-founder of Magebit, Forbes 30 under 30
Frequently asked questions
If you can’t find the answer you’re looking for, feel free to reach out to us. We’re here to help.
Almost always some mix of six things: too many apps injecting scripts, leftover code from uninstalled apps, oversized images, a JavaScript-heavy theme, an accumulation of third-party tags, and collection pages straining at catalog scale. It’s rarely Shopify itself, the platform and its CDN are fast. The audit tells you your store’s exact mix, with each cause measured.
No, and be wary of anyone who does before seeing your store. We baseline with Shopify’s real-user data and Lighthouse, set the realistic target from the audit, and report every change against it. The results are measured, not promised in advance.
Nothing gets removed without your sign-off, the audit shows each app’s speed cost next to its business value, and you decide. Every change passes review and staging validation with proof, and deploys never take the store offline.
Usually neither. Most stores get fast through app, media and theme-code work. If the theme truly is the ceiling, or the case for headless is real, you’ll see it as a separately priced option with the numbers, never as a default.
The fix is a project, staying fast is a habit, monitoring, a page-weight budget and pre-peak audits keep it. Most clients keep us on support so the next app install doesn’t undo the work.
Send us your slowest page
- 1
A real specialist replies
Not a sales script.
- 2
An honest speed read
Your causes, your quick wins, your ceiling.
- 3
No obligation
The findings are yours to keep.