WordPress Speed Optimization for Large Site

I run a WordPress installation with 50 000 pages and around 30 active plugins. Right now the main pain point is excessive memory usage that quickly escalates into overall high resource consumption. I need a specialist who can squeeze every ounce of speed out of my current stack—LiteSpeed, MariaDB, PHP, and Redis—without sacrificing stability.

Here’s what I want done:
• Audit my existing LiteSpeed, PHP (lsphp), Redis, and MariaDB configurations with an eye on memory-hungry bottlenecks coming from WordPress plugins, heavy database queries, and cache management.
• Implement best-practice tuning: LiteSpeed worker limits, cache policies, opcache settings, Redis eviction and max-memory rules, and MariaDB buffers/innodb parameters.
• Set up controlled before-and-after benchmarks (e.g., Loader.io, ApacheBench or another reliable tool) to prove gains in memory footprint, query speed, and page-load times.
• Deliver a concise report that lists the exact configuration changes, benchmark methodology, raw results, and next-step recommendations so I can replicate or roll back if ever needed.

I’m only interested in freelancers with real hands-on expertise in high-traffic LiteSpeed and WordPress environments; please share a relevant success story when you apply.