LiteSpeed beats Nginx by up to 45% on WordPress TTFB in 3-month benchmark

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A developer ran a three-month side-by-side benchmark of LiteSpeed Enterprise and Nginx on identical 4-vCPU, 8GB RAM VPS instances, each hosting the same 12 WordPress sites across brochure, WooCommerce, and Elementor blog categories. LiteSpeed delivered 33–45% lower TTFB across all site types and pushed 10 out of 12 sites to a 90+ mobile PageSpeed score, compared to just 3 out of 12 on Nginx. However, roughly 80% of that performance edge was attributed to the LSCache plugin rather than the LiteSpeed server itself. A follow-up test replacing Nginx with the free OpenLiteSpeed server plus LSCache achieved 92 mobile PageSpeed and 245ms TTFB on a full WooCommerce store, versus 384ms on Nginx. The author concludes that OpenLiteSpeed combined with LSCache is the most practical choice for most WordPress workloads, while Nginx remains preferable for headless setups, purely static sites, or teams already experienced with it.

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