Optimizing WooCommerce Speed: Database Cleanup, Cart Fragments, and Redis

Why WooCommerce Stores Slow Down#

WooCommerce generates dynamic database queries for sessions, cart calculations, and product variations that cannot be cached as static HTML for logged-in shoppers.

3 Essential WooCommerce Optimizations#

1. 1
   Enable Redis Object Cache: Caches customer session transients in RAM, eliminating 80% of repetitive MySQL queries during checkout.
2. 2
   Disable AJAX Cart Fragments on Blog Pages: By default, WooCommerce queries /?wc-ajax=get_refreshed_fragments on every single page. Use LiteSpeed Cache or code snippet to run this only on store/cart pages.
3. 3
   Clean Up Expired Transients: In WordPress Admin -> WooCommerce -> Status -> Tools, click Clear customer sessions and Clear transients.