Key Takeaways WordPress performance improves significantly with newer PHP versions; PHP 8.4 is the fastest. Sites running PHP 7.4 or earlier should upgrade for better speed, security, and plugin compatibility. Success response counts and average load times improve consistently from PHP 5.6 → 8.4. Benchmarking helps identify the optimal PHP version for your WordPress setup. … Continue reading PHP 5.6 to 8.4: WordPress Performance Benchmarks for 2025