Incorrect prices after cache clears usually stem from aggressive caching of dynamic content.
WooCommerce pricing depends on sessions, user roles, and location.

Ensure your cache excludes cart, checkout, and account pages. Server-level caches and CDN rules often override plugin settings, so verify those too.

JavaScript-based price updates can also fail if cached incorrectly, especially with minification enabled. Testing with cache disabled confirms this quickly.

A common mistake is caching everything for performance without understanding WooCommerce dynamics.
The takeaway is that eCommerce performance tuning must respect dynamic data boundaries.