Is Prestashop slow? Solution: Refresh cache

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The answer in detail: Is Prestashop slow? Refresh cache

I often get asked about the speed of Prestashop e-commerce sites. This may be due to slowness in the back office or the front office. The majority of emails I receive suggest that I make a commercial proposal to optimize it. It can be a little tricky to figure out which optimizations to implement on such a consideration. There are many things that can impact page load speed. Hypocritically, I wouldn't send a proposal almost immediately without looking at the site. That's why I'm asking for admin access to make sure the Prestashop settings are in place. One time out of four, the person will need a proposal. Now let's see the settings that can boost your website. I will first list the adjustments that need to be made to get good results. Next, I'll show you the optional settings, which depend on both the installed theme and the modules. In Prestashop 1.5 and Prestashop 1.1.7, cache settings can be found in "Advanced settings" then "Performance". This tab is important because you will come back to it often.
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Why is the administration of my Prestashop site slow ?

Sometimes the connection to your back office can be slow. This is often caused by plugins that use a lot of resources from your web hosting. However, there is an easy way to check the resources used on your Prestashop site. This is the Profiling option. This option allows you to locate the module that uses all the resources. Recently, several clients and prospects contacted me about the slow backoffice of Prestashop. This is not the first case of this problem. It wasn't a customer alert, but I assumed it was an issue with shared hosting. I only realized that something was wrong when my clients who use my hosting services also contacted me.
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Fix Prestashop backoffice slow issue.

Perhaps you have already upgraded your hosting to a VPS, or even a cloud service. Your Prestashop site is now working perfectly! However, the connection to your Prestashop backoffice is still very slow. This is probably due to a module blocking the loading of your administration pages. This is the Prestashop Expertise module. To deactivate it, you can finally work on your administration by going to "Modules & Services" and looking for the "Expertise" module. Log out, then log back in to deactivate Prestashop. MAGICAL ! The problem of slowness of the backoffice of your Prestashop installation has been solved. It wasn't a server issue (as often happens). Contact our Prestashop agency if you have any questions regarding Prestashop issues. We have been working with hundreds of Prestashop CMS users in our daily work for over 10 years and we have seen many different problems which we have enjoyed solving.
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What are the causes of a slowdown in the Prestashop backoffice ?

It is impossible to display your Prestashop backoffice. You can't stop working. If you used a web agency, or a freelance webmaster, the first thing to do is to contact them to report the slowdowns. Although the backoffice of Prestashop is slow, it is not necessarily a problem directly related to your e-commerce site. This slowdown can be caused by many factors, but the one that concerns me is Prestashop. An overload of Prestashop servers has caused your Prestashop administration interface to slow down. Indeed, the API (Application Programming Interface) of Prestashop is used by the backoffice. Why does he do this? To show you the list of modules you can buy. Your back office will also be affected by Prestashop issues.
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The administration of Prestashop can be accelerated by respecting these parameters.

Encrypting HTTP requests (containing mySQL queries) can increase security. This comes at a performance cost. Server-side encryption and decryption can take a long time. This can double the query execution time. Our #1 recommendation for better performance is to uncheck this option in the application login windows. Data returned by the server from the database may be encrypted or compressed for the same security reasons. As compression reduces the volume of the data, it speeds up the transfer. While this may be true in some cases, it ignores the fact that compression and decompression can take time and often result in a negative result. If you are ready to sacrifice a little security in exchange for better fluidity, our Ndeg2 advice is to choose the "Neither encoded nor compressed" mode The progressive loading mode allows to read, load in memory and display only the first level . When you need them, the subcategories will show up. This mode can be a time saver on large sites (30,000 categories or more), as it can save you up to 20 minutes at launch. Ndeg3 advises you to systematically choose the new mode whenever the program allows it.
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HOW TO CORRECT PROBLEMS OF SLOWNESS ON THE ADMINISTRATION OF A PRESTASHOP SHOP from your hosting ?

Log in to your customer account. Click on the "Manage" button. Click on the "File Manager" button Once connected to your FTP space, click on the "config" folder to open it. To open the "defines.inc.php" file, click on the "Edit" button. Look for the "PS_DEBUG_PROFILING" line. This feature can be enabled simply by changing the word false from true. Save your file after making the changes. Go back to your admin dashboard. You will find interesting information like resource usage on your left, as well as Prestashop version, PHP version and MySQL version. The right part of your screen will show you a table that provides all the information needed to solve your slowness problem. You will be able to identify which plugin or hook is causing the problem and how your web hosting resources have been used. You can also determine the loading speed of each plugin.
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Significant slowness in the Prestashop backoffice, case of the gamification module

Many e-merchants have complained about the slow back office of Prestashop. It can also affect the front office. Contacted by customers to analyze the behavior of Prestashop, we have identified a first-level problem related to exchanges between the Prestashop gamification module and the Prestashop servers. Gamification is an educational module that encourages you to earn medals through expert e-commerce actions such as product attributes, features, and selling overseas. It is not intended to be used in the same way as other modules and has no other purpose. It is not intended to be used in the same way as other modules and has no other purpose. It can slow down the interface significantly. This is a technical issue that does not affect your host. While Prestashop is working on a solution, disabling and renaming the gamification module will fix the issue. It's best to rename your module directory so that it doesn't reactivate on future updates. This will not affect your use of the mod directory or your visitors' experience.
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