OpenCart 1.5.x–2.2.x, 2.3.x, 3.x and 4.x use separate packages. Legacy connectors require PHP 5.6 or newer; your OpenCart version must also meet its own PHP requirements.
We recommend backing up your site and database so you can restore them as quickly as possible if an unexpected problem occurs and our team cannot assist you at that moment.
Optional advice for your hosting provider
Some hosting settings prevent even public pages from being cached. You can continue installing Performance Pro and measuring load times, but caching may be limited. This is only a suggestion: ask your hosting provider to check if it affects your store. You do not need to change anything to continue the installation.
OpenCart 1.5.x: Requires VQMod 2.6 or later. Extract the legacy ZIP and upload the contents of upload/ to your store root, keeping the folders. It includes vqmod/xml/devman_performance_pro.xml.
OpenCart 2.x, 3.x and 4.x: Follow the standard extension installation process for your OpenCart version. After installation, refresh OCMOD under Extensions > Modifications (OpenCart 2.x and 3.x only).
Open the module and complete the setup assistant
Go to the module list, find Performance Pro, install it and open it.
Sign in with your existing DevmanExtensions account or choose Create account to register in a new tab. Return to OpenCart and start your subscription in the second step.
Starting a subscription with a payment method is required for the 7-day free trial. You can cancel without commitment before the first charge date. After the trial, the price is 3 € per month plus applicable taxes.
Back in OpenCart, your license connects automatically and measurement starts with caching off. If the panel has not updated, click Check activation.
Capture your starting point
Visit public pages as a guest in a private browser window. Keep the cache off while collecting the baseline. Compare the same page type and device; percentages need at least 20 samples in each group.
Enable caching and verify
Open Server checklist, enable public page caching and save. Check products, stock, prices, language, currency and checkout as a guest and signed-in customer. The Before and now comparison uses the measurements collected by your store. You do not need to record changes.
