Two Approaches to Object Caching
Object Cache Pro (OCP) is a premium Redis client built specifically for WordPress, focusing on performance and Relay (in-memory PHP process cache). LiteSpeed Cache (LSC) is a free, all-in-one optimization plugin that includes standard object caching for Redis and Memcached.
Object Cache Pro & Relay
OCP’s primary advantage is Relay — a PHP extension that keeps a subset of the Redis cache in the PHP process’s own memory space. This eliminates the Redis network round-trip, reducing read latency from 0.2–0.5ms to under 0.05ms.
When to Choose Which
Choose Object Cache Pro ($95/year) for high-traffic WooCommerce stores where every millisecond of PHP execution time matters. Choose LiteSpeed Cache for budget-constrained sites, content blogs, or sites hosted on LiteSpeed servers that want an all-in-one solution.