No, WooRanker is specifically designed with performance in mind and will not significantly slow down your site. The plugin is built to be lightweight and optimized, working efficiently even on stores with thousands of products.

Key performance features include:

• Efficient caching mechanisms that minimize database queries
• Background processing for score calculations to avoid affecting frontend performance
• Optimized database operations that maintain speed even with large catalogs
• Configurable refresh rate allowing you to balance update frequency with server load

For very large catalogs (5,000+ products), you can adjust the score refresh interval to daily or weekly instead of hourly to further minimize any performance impact.

In most cases, the improvement in user experience and conversion rates from having optimally sorted products will far outweigh any minimal performance impact from the plugin itself.