Sub-second server response times directly impact user engagement, conversion rates, and search rankings. Slow TTFB (Time to First Byte) is rarely solved by frontend optimizations alone—it starts with server configuration and network delivery stack tuning.
1. Enable HTTP/3 & Fast FastCGI Caching
Using Nginx or LiteSpeed with FastCGI microcaching allows dynamic dynamic web pages to be served directly from RAM without querying PHP or database processes on every GET request.