What's a good PageSpeed score for Shopify?

Don't obsess over the PageSpeed Insights number — it's inflated by Shopify's mandatory scripts. Focus on Core Web Vitals: LCP under 2.5 seconds, FID under 100ms, CLS under 0.1. A PageSpeed score of 50-70 on mobile with good Core Web Vitals is solid for Shopify.

Will a faster store actually increase my sales?

Yes, and the data is clear. Amazon found that every 100ms of latency costs 1% in sales. For a Shopify store doing $100K/month, a 1-second speed improvement could mean $5K-10K in additional monthly revenue. Speed also improves Google rankings, which drives more organic traffic.

Is the Dawn theme really the fastest option?

For Shopify's free themes, Dawn is consistently the fastest. But several premium themes (Prestige, Impulse, Symmetry) are well-optimized too. The key is to test — install the theme on a dev store, add your products and apps, and run PageSpeed before committing to a migration.

Can apps really slow down my store that much?

Absolutely. We've seen stores go from a PageSpeed score of 25 to 55 just by removing unused apps. Each app loads its own CSS and JavaScript files, even on pages where the app isn't being used. The impact is cumulative and often shocking.

Should I use a page speed optimization app?

Ironic, right? Some speed optimization apps are legitimate — they defer scripts, compress images, and clean up code. But many add their own overhead that partially offsets the gains. Before installing a speed app, try the manual fixes in this guide first. If you still need help, we can audit and optimize directly.

Shopify Speed Guide

Every 100ms of extra load time costs you 1% in conversions. Here's how to fix it.

You run your Shopify store through PageSpeed Insights and see a score of 35. Red numbers everywhere. Your mobile performance is "Poor." And you start to panic.

Take a breath. Shopify's speed scoring is notoriously misleading because every Shopify store loads Shopify's own JavaScript framework, which inflates the numbers. A "real" Shopify speed score of 50-60 is actually normal. But that doesn't mean you should ignore speed.

What actually matters: your Largest Contentful Paint (LCP) should be under 2.5 seconds, First Input Delay (FID) under 100ms, and Cumulative Layout Shift (CLS) under 0.1. These Core Web Vitals affect both your Google rankings and your conversion rate. Here's how to hit those targets.

Conversion Loss per 100ms Delay

<2.5s

Target LCP (Google)

200-400ms

Added per Shopify App

53%

Mobile Users Abandon Slow Sites

How to fix this — step by step

Audit and remove unused Shopify apps

Every Shopify app you install injects JavaScript into your store. Each one adds 200-400ms of load time — even if you're not actively using it. Go to Settings → Apps and remove anything you installed "just to try" or stopped using. The average Shopify store has 12 apps installed. Most need 5-7. Removing 5 unused apps can shave 1-2 seconds off your page load. Even apps you keep should be audited — some load their scripts on every page when they only need to run on specific pages.

Optimize your images — they're usually the biggest bottleneck

Images are typically 60-80% of a page's total weight. Shopify automatically serves WebP when the browser supports it, but you still need to upload properly sized images. Product images shouldn't exceed 2000x2000px. Hero images should be under 200KB. Use Shopify's built-in image optimization and add lazy loading to all images below the fold — most modern Shopify themes support this natively. Check your theme settings for "lazy load images" and enable it.

Use a fast, well-coded theme

Your theme is the foundation. Shopify's free themes (Dawn, Refresh, Craft) are the fastest because they're built by Shopify's team and optimized for performance. Premium themes vary wildly — some are great, many are bloated. If your PageSpeed score is below 30, your theme might be the culprit. Test your store with the Dawn theme on a dev store — if Dawn scores 20+ points higher, your current theme is the bottleneck and you should consider switching.

Defer non-critical JavaScript and CSS

Check your theme's <head> section for render-blocking scripts. Chat widgets, review apps, and loyalty program scripts don't need to load before the page renders. Move them to the footer or add "defer" or "async" attributes. In your Shopify theme code (Online Store → Themes → Edit Code), look for scripts in theme.liquid that aren't critical for first paint. Most third-party app scripts can be deferred without breaking functionality.

Minimize third-party scripts and tracking pixels

Google Analytics, Meta Pixel, TikTok Pixel, Hotjar, chat widgets — each one adds load time. You probably don't need all of them. Use Google Tag Manager to load scripts conditionally instead of on every page. If a tracking pixel only matters on the thank-you page, only load it there. Review your theme.liquid and additional scripts for redundant or outdated tracking codes. We regularly find stores loading 10+ tracking scripts when they only need 3-4.

Enable Shopify's built-in performance features

Shopify has added several performance features you might not have enabled: DNS prefetching for external domains, browser caching headers (handled automatically by Shopify CDN), and storefront rendering optimization. Make sure your theme is updated to the latest version — Shopify regularly releases performance improvements. Also enable Shopify's new web performance report in your admin under Analytics → Reports → Web performance.

Want us to handle this?

Steps 1 through 3 will make the biggest difference. App cleanup and image optimization alone can cut 2-3 seconds off your load time. These are things you can do this weekend.

But if your speed problems are deeper — a bloated theme, custom code that's poorly optimized, or complex app interactions — that's a development project. We build and optimize Shopify stores for a living. If you want a detailed speed audit with specific, prioritized fixes, we'll do it for free.

Get a Free Speed AuditWe'll walk through your setup live.

Questions our best clients asked first

Want to know exactly what's slowing your store down?

We'll run a comprehensive speed audit — apps, images, theme code, and third-party scripts — then give you a prioritized fix list with expected impact.

Pick a Time

15 minutes. No pitch deck. Just your data and our honest take.

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