Page speed is not a technical metric — it is a revenue metric. In this guide we cover the 10 highest-impact Magento 2 performance techniques our team uses on every project.
1. Enable Full Page Cache with Varnish
Magento built-in FPC is your first and most impactful lever. Configure Varnish as your caching engine in Admin → System → Cache Management. A properly configured Varnish setup can serve cached pages in under 20ms.
2. Use Redis for Session and Cache Storage
Replace file-based storage with Redis. Add your Redis configuration to app/etc/env.php under the cache and session sections. Redis reads are 10-100× faster than file system reads.
3. Enable JavaScript Bundling and Minification
Go to Stores → Configuration → Advanced → Developer → JavaScript Settings. Enable bundling and minification to dramatically reduce HTTP requests on the storefront.
4. Serve Images in WebP Format
WebP images are 25-35% smaller than JPEG at the same quality level. Implement WebP conversion at the CDN layer or use a Magento WebP extension for automatic conversion.
5. Enable Flat Catalog for Large Catalogues
For stores with 10,000+ SKUs, enabling flat catalog tables speeds up queries significantly. Navigate to Stores → Configuration → Catalog → Storefront → Use Flat Catalog.
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