Tag: Prestashop speed optimization

How to Speed Up Your PrestaShop Store in 2025: The Ultimate Core Web Vitals Guide

Nobody enjoys waiting for a slow website. Your customers will press the back button within seconds. Also, Google now uses speed to rank websites. As a result, you lose both customers and search engine rankings if your PrestaShop store is slow. But don’t worry, this guide will help you fix that issue quickly.

What Are Core Web Vitals? (It’s Actually Simple)

Consider Core Web Vitals to be the Google report card for your website. They gauge the below most crucial elements for your site’s visitors:

  • Largest Contentful Paint (LCP): This measures how long your biggest page element takes to load. Aim to keep it under 2.5 seconds. First impressions matter, so a slow-loading page makes visitors think your site is broken.
  • Interaction to Next Paint (INP): This checks how fast your site responds to clicks. Keep it under 200 milliseconds. When people click buttons, they expect an instant response. Otherwise, they get frustrated and leave.
  • Cumulative Layout Shift (CLS): An annoying page jump is measured by Cumulative Layout Shift (CLS). You know when you are about to click something and the page shifts? Keep this under 0.1. Nobody likes accidental clicks during checkout.

Time to First Byte (TTFB): This measures how quickly a request is processed by your server. A decent TTFB is less than 200 ms. When TTFB is slow, users have to wait longer for anything to load at all.

If you fix these, you’ll see more sales. Your customers will be happier, and Google will rank you higher.

Your PrestaShop Speed Plan

Ready to transform your slow store? Here’s your action plan.

1. Fix Those Huge Images

Large images are a primary killer of store speed. Here is what works:

  • First, convert images to WebP format. This cuts file sizes by 30% without losing quality.
  • Then, set up lazy loading. This loads images only when customers scroll to them. As a result, pages load faster upfront. Customers see content immediately instead of blank screens.

2. Leverage a Content Delivery Network (CDN)

A global network of servers is called a CDN. A CDN pulls content from the nearest server when a customer comes into your store. Especially for a worldwide audience, this lowers latency and expedites the delivery of content. Services like Cloudflare offer great CDN solutions that are easy to integrate with PrestaShop.

3. Tame Your Code: CSS and JavaScript Optimization

PrestaShop relies on CSS and JavaScript files. Over time, these files can become large, which can block rendering and delay content loading.

  • Minify and Combine: Minifying CSS and JavaScript removes unnecessary characters, reducing file size. There are fewer HTTP requests when several files are combined into one. PrestaShop has a built-in feature for this called “CCC.” You should definitely enable it.
  • Defer Non-Essential Scripts: To improve your INP score, defer non-critical scripts. This means loading these files after the main content appears. Consequently, users can interact with your page much faster.

4. Use Smart Caching

Caching is like your store’s memory. Instead of rebuilding pages for every visit, your server remembers and reuses content. To speed things up, set up server caching using tools like Redis or Memcached. These store database results in memory, giving repeat visitors lightning-fast responses.

You should also configure browser caching. This tells visitors’ browsers to remember your static files, like images and stylesheets, so they don’t have to download them again in the future. visits. You can set a long cache time for these files via the .htaccess file if you’re using an Apache web server.

5. Regular Audits

Regular audits help identify unnecessary or outdated entries that only consume space and slow down queries. For example, tables like ps_log, ps_connections, ps_connections_page, and ps_guest often grow very large. They store logs, statistics, and visitor data that are rarely used. Similarly, abandoned carts in ps_cart, expired vouchers in ps_cart_rule, and old email records in ps_mail can be removed safely after a certain period.

Tools to Track Progress

You must evaluate your present performance before optimising. You can examine your PrestaShop store’s Core Web Vitals with the aid of a number of effective tools.

  • Google PageSpeed Insights: This is the most authoritative tool for measuring CWV. Just enter your URL to get detailed reports for both desktop and mobile performance.
  • Google Search Console: This free application keeps track of your CWV continuously.
  • GTmetrix: GTmetrix offers detailed performance analysis with visual tools. Using Lighthouse, it generates scores for your pages and offers actionable recommendations on how to optimise.
  • Lighthouse: A Google open-source tool that analyses your website’s performance, accessibility, SEO, and best practices. You can use Chrome DevTools or the CLI to run it, and it provides you with scores for every category along with actionable insights.

At Knowband, we guide store owners with best practices to maintain a clean and optimised PrestaShop database. By following systematic audit routines and learning which tables can be safely cleaned, merchants can avoid unnecessary bloat, reduce query load times, and improve overall store performance.

PrestaShop 9: A New Chapter with Symfony

PrestaShop 9 marks a major advancement for the platform. This is not just an ordinary update; it is a significant effort from the community to build a modern, reliable core. The entire system now runs on the Symfony framework. This transition was a careful plan that took years. The switch to Symfony is critical. It makes the platform faster, more secure, and more adaptable for everyone. Ultimately, PrestaShop 9 is a total overhaul. Its design makes it ready for the future and competitive in today’s e-commerce landscape.

The Symfony Switch: A Closer Look

The most significant change in PrestaShop 9 is that the entire administration area now operates on Symfony 6.4 LTS. Before, the PrestaShop team used a mix of old code and Symfony. This was complicated for developers and often caused bugs. But with this new version, the team rebuilt every single admin page. They built them to fully use Symfony and Twig templating.

As a result, developers can now work with a single, consistent framework. This consistency simplifies creating new modules and makes fixing issues much easier. The platform can also use Symfony’s strong security features. It benefits from the support of a large developer community.

In addition, this change allowed the project to remove a lot of outdated code. For example, the team has permanently removed features like the old XML API and the confusing product form. In their place is a cleaner system that is simpler to maintain. The platform also now supports newer versions of PHP (8.1–8.4). This is a huge benefit. These new PHP versions bring significant performance boosts and better error handling.

They also include Just-In-Time (JIT) compilation. This can make your store run much faster. In summary, the move to Symfony is all about making the platform more dependable, more powerful, and easier to expand.

New Features for Store Owners

While the biggest changes are “under the hood,” the admin panel itself offers a much better user experience. The interface has a more modern look, and all pages now feel consistent. You won’t see that frustrating mix of old and new interfaces anymore. This consistency makes managing your store a lot smoother and reduces the time you need to train new staff members.

For developers, one of the best new tools is the Admin API. This new API provides a modern way for other systems to communicate with your store. It’s built on a framework called API Platform, which makes connecting with things like your inventory system, customer management software, or a mobile app simple. For example, it’s now very easy to automatically update prices or sync your stock with your warehouse management system.

You could even create a custom mobile app for your store. Then you can have it pull all product and order data directly from this API. In fact, this new API is what makes headless commerce a reality. It lets you use PrestaShop for its back-end. Meanwhile, you can create a totally custom front-end with modern frameworks like React or Vue.js.

Why This Is Great for Everyone

These technical updates provide real benefits for both store owners and developers. For store owners, the platform is much faster. The updated code and PHP compatibility mean your pages will load quickly. Quick loading is crucial for keeping customers happy and getting more sales. Also, PrestaShop 9 now supports new image formats like WebP and AVIF. These images are much smaller. This speeds up your site even more without reducing quality. A faster site can also improve your Core Web Vitals score. That score is a key factor for good SEO.

The SEO features have also been refined. The platform creates cleaner, shorter URLs by default. This makes it easier for search engines to understand your site. For developers, the benefits are huge. The full Symfony architecture gives them a consistent, well-documented environment.

This makes building modules and themes easier and more enjoyable. With the new Admin API, they can build better, more powerful integrations. They can also meet today’s demanding business needs. All in all, PrestaShop 9 is a massive improvement. It’s a modern, future-proof platform.

Need trustworthy PrestaShop plugins or expert help with migration and compatibility? Our team delivers seamless solutions tailored to your store’s version—whether you’re on 1.6, 1.7, 8, or moving to 9. We handle the technical complexity, so you can focus on growing your business with confidence.