Shopify Speed Optimization Guide – Updated 2024

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Introduction of Shopify Speed Optimization Guide

Is your Shopify store feeling sluggish? Don’t let slow loading times hold you back from success. In this comprehensive Shopify speed optimization guide, we’ll walk you through proven strategies techniques to accelerate your store’s performance. From optimizing themes images to leveraging caching CDNs, we’ll equip you with the tools to supercharge your Shopify store for lightning-fast speed this will be an exceptional user experience.

Present span of concentration of a user is down from 12 seconds to 8 seconds which indirectly means if the average speed of a Shopify website page is higher with 3 seconds conversion will be down.

The most common mistakes we can avoid when we do optimization

  • Avoid using high scaled images.
  • Avoid Jpeg , Jpg format low quality images.
  • Avoid layout shift on the web page.
  • Avoid lengthy content on your home page.
  • Avoid many sliders on home page & Product page.

Are you excited to achieve your shopify store score on Google Speed Insight approx 90 this will be load time less 2.5 seconds.

How to Audit in Shopify speed optimization?

  • Benchmark Current Performance: Before you start making changes, it’s essential to measure your store’s current performance. Use tools like Google PageSpeed Insights, GTmetrix, or Pingdom to get insights into your website’s loading speed and performance scores.
  1. Google Page Speed
  2. GT Metrix
  3. Pingdom
  • → Google analytics is used for average server response time this calculate the average page speed.
  • → Google search console for web vitals.
  • → It’s not just checking a page on these tools. It’s about overall user experience in to all pages during peak load
  • Review Image Optimization: Assess the size and format of images used on your store. Compress and resize images without compromising quality to reduce their file sizes.
  • Evaluate JavaScript and CSS: Examine the amount of JavaScript and CSS files your store loads. Minimize and combine these files to reduce the number of server requests.
  • Check for Broken Links and Redirects: Broken links and improper redirects can negatively impact your store’s speed and SEO. Regularly audit and fix any broken links or redirects.
  • Assess Third-Party Scripts: Review third-party scripts used on your store, such as analytics and tracking codes. Limit the number of scripts and consider asynchronous loading to prevent them from blocking page rendering.
  • Optimize Fonts: Limit the number of fonts and font weights used on your store to reduce HTTP requests and improve load times.
  • Test Checkout Speed: Ensure that the checkout process is optimized for speed, as this is a critical stage for conversions. Eliminate unnecessary steps and reduce the time it takes for customers to complete their purchases.
Google Page Insight result

In to the Shopify speed optimization Guide will check How to Optimize shopify website?

We will share the best practical advice when you work on your website. When you are doing Shopify speed optimization, you must take the backup of your theme.

Refer these techniques to optimize your Shopify store..

Pointers of Shopify speed optimization

How to Migrate Tracking Codes To Google Tag Manager :

  • Google Tag Manager allows you to easily add/remove tags from your store without touching the code.
  • It is a free tracking tool management platform that allows the user to add marketing tags, snippets of code, to your website to track collect marketing data.
  • It is a very useful tool, when used with Google Analytics.
  • Set Up Google Tag Manager
  • Install GTM Container Code
  • Create Tags in GTM
  • Configure Triggers
  • Set Up Variables (Optional)
  • Publish Container Changes
  • Verify Tracking Implementation

How to Improve Image Payload:

Google Speed Optimization

Replace GIFs With Static Images for Shopify speed optimization:

  • GIFs are a valuable asset for customers’ experience.
  • File types affect the size of your images. According to Shopify, the best image file type is PNG (30 kb – 100 kb), followed by JPEG (approximately 30 kb), GIF (approximately 35 kb), replace the GIFs with static images.
  • It looks like an excellent job of improving your business, Gifs can take a large approx larger 10 MB.

Decrease Thumbnail Image Size for Shopify speed optimization:

On the Product page, the main image is used for larger file size, if you used the same size image for the thumbnail, the user’s browser to scale it down for the thumbnail takes more time which impacts your page load time. Recommend to use small-size images for thumbnails.

Reduce Apps Impact On Performance for Shopify speed optimization:

  • When you install any app, it may have a significant performance impact on the stores.
  • Use Shopify API methods instead of using Apps.
  • Lots of shopify apps may loads may affect the loading time. find the apps which are lighter & usable for your store.
  • When you Uninstall any non-essential apps then there should be the unused app code in your theme files, you should find that & remove it from the shopify store.
  • Apps should be removed properly. It should be a great start.

Few examples where apps can be replace by code are :

  • Popup images
  • Image gallery
  • Faceted search
  • Product meta data

Choose a Lightweight Shopify Theme

  • It’s a good decision to start with shopify, when you select the shopify theme, you should be aware of their ratings , services & features any purchase.
  • Check their reviews. & live sites for scores where the Shopify theme has been used.
  • Theme should be super fast, well Optimized & light weight, instead of the one that is cluttered with fancy elements.
  • Their main goal is to help visitors navigate your store , perform the action they came to do.
  • There are many themes available in shopify that are well optimized.
  • → Prestige Theme
  • → Flex
  • → Turbo
  • → Shoptimized
  • → Boostertheme
  • → Shella
  • → Fastor
  • → Debutify

Choose The Right Font for Shopify Speed Optimization :

  • The experience of your customers will be quick easy. That’s why the potential customers will not face any trouble navigation your store.
  • There is no doubt that readability is the very important factor. It doesn’t matter if you’re looking at the font for a header, a button, the body of a blog post.
  • If a customer is not able to read the text on the website, they will not want to buy the product use the service.
  • I want to suggest limiting the fonts to one. Use a standard web font.
  • Shopify’s font library contains a collection of fonts system, Google fonts, licensed fonts from Monotype. You can use all fonts freely available to use on all Shopify online shops.

Advance Technique to Improve Shopify Speed Optimization.

Optimize Cumulative Layout Shifting :

  • Cumulative Layout Shift measures the movement of visible elements within the viewport.
  • To solve the CLS issue, you have to arrange the layout. Avoid large layout shifts.
  • The Image element should have explicit width/height. For video elements correct spacing is used for images/video.

Here is Example :

<img src="puppy.jpg" width="640"height="360"alt="Puppy with balloons"/>
  • Webfonts that are Invisible Should be Prevented.
  • You should avoid adding content existing content, except in response to a user interaction.

For More details you can check this link :

Read this Blog – Cumulative Layout Shifting

Optimize Total Blocking Time :

  • Any improvements to JavaScript execution ( generally, optimizations that improve TTI ) will likely reduce your TBT.
  • You can use the async & defer method. Remove unwanted javascript code, unused app JS code.
  • Replace the large javascript libraries with smaller alternatives.
  • Reducing JavaScript payloads with code splitting, removing unused app code, efficiently loading third-party JavaScript should improve your TBT score.
<!-- Defer Attribute -->
<script type="text/javascript" src="theme.js"defer/>
<!-- Async Attribute -->
<script type="text/javascript" src="theme.js"async/>
  • Reduce the impact of third-party code & Reduce JavaScript execution time.
  • Consider reducing the time spent parsing, compiling, executing JS. You may find delivering smaller JS payloads helps with this.

Optimize Largest Contentful Paint :

To Improve the Largest Contentful Paint work on these following points :
  • Deliver your images in lighter formats.
  • Eliminate render-blocking resources
  • Optimize web Fonts.

Optimize First Contentful Paint :

To Improve the FCP work on these following points :

Remove, Replace Move Code on a High Priority Basis:

  • Remove commented additional HTML.
  • Eliminate render-blocking resources.
  • Unused CSS
  • CSS screen fold to go to critical CSS.
  • Unused JS from previous uninstalled apps.
  • Check with app providers for CSS, JS other payloads their apps.
  • Make sure that JS are not all pages if they are needed for some specific pages add js condition wise.
  • Shopify Themes page builders can result in lot many code lines make sure that your JS is less 16 KB( recommended difficult to achieve).
  • Replaces 3rd party JS libraries like Jquery  others with Javascript code  a lightweight library. Core Javascript code is recommended.
  • Go for PWA

Health Check Your Shopify Store Weekly Keep a Record:

As per our section “tools” to be used for Audit

  • Google Analytics : If implemented it will keep history of average response time average page load time.
  • Google Search Console keeps data of 3 months for web vitals.
  • Keep a good handy document with monthly/weekly updates of the score preferable via some tool services.
  • Keep a note of JS payload, image payload, CSS, HTML stats for a few pages as developers apps on times results in additional payloads which will impact score.
  • Keep a log of modules added removed the purpose of the module used.
Shopify Speed Optimization

Simplify Your Homepage Design

  • Use design to improve user experience.
  • Add more valuable & important content.
  • Add testimonials, reviews, logos.
  • Make your store mobile responsive.
  • Include trust indicators on the homepage.
  • Homepage content should be strategically decided.
  • Add ‘Call to action banner’ ‘New arrivals’, ‘Top selling products, Most popular collection, announcement bar.

Minify Webpage

Google Shopify Speed Optimization
  • Compress (done by Shopify we do not have control if the content is coming from Shopify site).
  • When a user opens the webpage, the entire page’s images are downloaded, instead of loading all of the images at one time, It can be loaded when scroll on viewport. You can resolve this issue by using lazy loading.
  • Here is Example, if your web page contains 100 more images instead of loading all the images at one time we can add images in lazy loading load only required images on page scrolling.

Remove Unnecessary HTTP Requests:

If we use heavy JS, CSS,  images,  it will increase the HTTP requests on your shopify store.

When a customer visits your store, the browser performs several requests for loading each file.

  • Combine & inline your CSS scripts.
  • Use inline JavaScript code for smaller snippets.
  • Load less priority JavaScript on page load page scroll.
  • Convert images to Base64 code.
  • Limit the number of social buttons.

For more information please visit

JavaScript, CSS Performance Optimization:

  • Some apps will come with CSS,  JS.
  • As an expert you need to identify how some of the CSS, JS of an app can be removed.
  • Always beware of excessive liquid loops.

List of Opportunities Audit Tool :

List down all opportunities link them to a specific blog as for those opportunities.


We do apply all stated points all the  defined steps necessary for the optimization process, in our daily life Shopify Speed optimization services this blog is created from our practical experience.

Shopify themes should be updated worked on with speed in mind most of the developers are not taking this perspective when doing theme work.

If stated points are taken care of  your site speed scores will be much higher Web Vitals will probably be all in green.

Best luck for your site speed conversion.

If you are looking for expert Shopify Speed optimization plus other services : you can always reach out to us!

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