Daniel F.
Velo Sport
“Our mobile score went from 24 to 82 in a week, and they did it by cleaning up the theme — not by adding another app like the last agency. Search Console shows us passing Core Web Vitals now.”
Code-Level Performance Engineering
Shopify Speed Optimization That Fixes the Code, Not Just the Score
We get into your theme's Liquid, scripts, and assets to genuinely speed the store up — improving Core Web Vitals, mobile load time, conversion rate, and SEO, without breaking a single feature.
Shopify speed optimization means improving how fast a store loads and becomes interactive — measured by Core Web Vitals (LCP, INP, CLS) — by cleaning up theme code, deferring and trimming scripts, optimizing images and fonts, and auditing app impact. Because Core Web Vitals is a Google ranking signal and a proven conversion factor, Dakaas treats speed work as both an SEO and a CRO lever.
1–2 wk
Typical turnaround for a speed pass
20–40+
Mobile performance-score points gained on a typical bloated store*
Permanent
Fixes are code-based, not a caching app you rent
0
Features or visual changes — the store works exactly as before
*Stores that start in the 30s–40s see the biggest jumps. A store already in the 70s might gain 10–15 points, which still matters for conversion and Core Web Vitals pass rates.
What's Actually Slowing Your Store Down
The usual culprits we find in a speed audit — and what we do about each.
Your hero image and above-the-fold content take four seconds to appear on mobile (a failing LCP).
We properly size and compress the hero, serve modern formats, preload the critical image, and cut the render-blocking CSS and JS delaying first paint.
The page visibly jumps around as it loads — images, banners, and the cookie bar all shifting content (a failing CLS).
We set explicit dimensions on images and embeds, reserve space for late-loading elements, and stop web fonts from causing a layout shift.
You've installed and removed a dozen apps over the years, but their scripts and CSS are still loading on every page.
We audit every request, identify leftover code from uninstalled apps, remove it, and defer the marketing and tracking scripts that don't need to run before the page is usable.
Buttons and menus feel laggy to tap for the first few seconds (a poor INP).
We break up long JavaScript tasks, defer non-critical execution, and reduce the third-party script weight that's blocking the main thread.
You bought a 'speed optimizer' app and your score barely moved.
Those apps mostly add another script to do lazy-loading the theme could do natively. We remove it and fix the causes in the code, so the improvement is permanent and doesn't depend on a subscription.
Why Speed Quietly Costs You Sales and Rankings
Speed isn't a vanity metric. A slow store loses shoppers before the page even renders, and Google measures that experience for every visitor and factors it into rankings.
Conversion rate drops measurably with each additional second of load time, and mobile is the most sensitive.
Core Web Vitals is a confirmed Google ranking factor — a failing store is handicapped in search on top of losing conversions.
Most Shopify slowness is self-inflicted: heavy themes, unoptimized images, and five apps injecting render-blocking scripts.
A fast store feels premium and trustworthy; a janky, shifting layout signals the opposite before a word is read.
Speed compounds with everything else — every paid click and every organic visitor is worth more on a fast store.
What a Speed Pass Covers
Code-level work on the things that actually move Core Web Vitals — not a checklist of app installs.
Liquid & JavaScript Cleanup
Removing redundant code, deferring non-critical scripts, breaking up long tasks, and trimming what the theme loads on each template.
Image & Media Optimization
Correct sizing, modern formats (WebP/AVIF), responsive srcset, lazy-loading below the fold, and preloading the LCP image.
App & Script Audit
A request-by-request review to find leftover code from removed apps, duplicate libraries, and scripts that can be deferred or dropped.
Core Web Vitals Tuning
Targeted work on LCP, INP, and CLS so your store passes Google's thresholds on mobile and desktop — measured in the field, not just the lab.
Font & Asset Delivery
Preloading critical assets, self-hosting and subsetting fonts, using font-display correctly, and eliminating font-driven layout shift.
Third-Party Script Management
Deferring or lazy-loading tracking pixels, chat widgets, and marketing tags so they don't block the content your customer came for.
What You Get
A faster store and the proof it's faster.
Before-and-after performance report
Lab scores (PageSpeed Insights, GTmetrix) and field data (Core Web Vitals from Search Console) for key templates, documented.
Optimized theme code
Cleaned-up Liquid, deferred scripts, and optimized asset loading — committed to your theme with clear notes.
App-impact report
A per-app breakdown of load cost, with recommendations to keep, replace, or drop — your call on any removals.
Image pipeline fixes
Existing images optimized, and a documented approach for keeping new uploads fast.
Core Web Vitals status
Where each metric stands against Google's 'good' thresholds after the work, on mobile and desktop.
Maintenance guidance
A short guide on what keeps a store fast — image habits, app discipline — so the gains don't erode.
Honest note on pricing: A speed pass is a fixed-fee project with a one-to-two-week turnaround and a before-and-after report. It's a great standalone service, and an easy add-on to a store build or redesign.
Why Trust Dakaas With Performance
We fix causes, not symptoms. That means editing your theme, not installing another app — and proving the result with real before-and-after data.
Code-based, permanent fixes: no dependency on a caching or lazy-load app you have to keep paying for.
Feature-safe: we work on a development copy and QA every template, so nothing visual or functional changes.
Field data, not just lab scores: we care about real Core Web Vitals in Search Console, which is what Google actually uses.
Honest about apps: we show you the load cost of each app and let you decide — we don't delete anything without permission.
Deep theme knowledge: we've worked across every major Shopify theme and know where the bottlenecks hide.
How a Speed Pass Runs
One to two weeks, entirely on a development copy until the final push to live.
1
Audit & Baseline (Days 1–3)
We measure lab and field performance for each key template, profile the page, and build the prioritised list of what's costing the most.
2
Optimize on a Dev Copy (Days 3–9)
We work through the list — code, images, fonts, scripts, apps — re-measuring after each change and QA'ing every template.
3
Verify & Deploy (Days 9–12)
Final cross-device testing, a before-and-after report, then a clean push to your live theme with monitoring for a few days after.
Case study
A fashion accessories store doing ~$180k/month
Fashion accessories · 10 days
The challenge
Mobile PageSpeed score of 29, failing all three Core Web Vitals in Search Console. The homepage hero was a 1.8MB PNG, three uninstalled apps had left scripts behind, and the cookie banner was shifting the whole page half a second after load.
What we did
- Replaced and preloaded the hero image, cutting it from 1.8MB to 90KB
- Removed leftover scripts from three uninstalled apps and deferred four marketing tags
- Fixed CLS by reserving space for the banner, images, and late-loading sections
- Self-hosted and subset the brand fonts
The results
29 → 78
Mobile PageSpeed performance score
Pass
All three Core Web Vitals in Search Console within a month
+11%
Mobile conversion rate over the following 6 weeks
Client anonymised at their request. Figures are from this specific engagement and are not a guarantee of similar results.
Sluggish to Snappy
Stores that fixed speed at the source.
Miranda H.
Silk & Stone
“They gave us a per-app load report and let us decide what to cut. We dropped two heavy ones, kept the rest, and the store is genuinely fast now. PDPs load almost instantly.”
Leon S.
Gadget Hub
“The before-and-after report was thorough and honest. Nothing broke, nothing looks different, the store is just quick. Exactly what we wanted.”
Platforms We Work With
Shopify
Google PageSpeed Insights
Google Search Console
GTmetrix
WebPageTest
Frequently Asked Questions
Answered all frequently asked questions. Still confused? Feel free to contact us.
No. The goal is 100% visual and functional parity — the store looks and works exactly as before, just faster. We work on a development copy and QA every template before deploying.
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Send us your store URL and we'll run the lab and field diagnostics, tell you exactly what's slowing it down, and estimate how much faster it can realistically get.
Get a Free Speed Audit