Namecheap VPS Performance Rescue

My site, muller-designs.com, runs on a Namecheap Quasar-tier VPS and lately it has been plagued by repeated downtime, database connection errors, and painfully slow page loads. I need someone who already knows the quirks of Namecheap’s VPS stack and can move quickly from diagnosis to a solid, measurable fix.

Here’s exactly what I’m facing:
• Downtime that can last minutes to hours and sometimes forces a manual reboot.
• Database connection errors popping up at random, usually under moderate traffic.
• Slow overall performance even when the server is up.

Core objectives
1. Pinpoint the root causes of the downtime and 500-style database errors.
2. Tune the server (Apache/Nginx, PHP-FPM, MySQL, caching layer, firewall rules) for maximum stability and speed.
3. Implement on-page and server-level optimisations—image compression, minification, caching headers, object caching, or CDN integration if you recommend it.
4. Provide a concise report of what was changed, why it was changed, and simple maintenance steps I can follow.
5. (Optional, once stability is restored) Advise on quick design or UX tweaks that could further improve perceived speed.

Acceptance criteria
• Uptime monitored over 7 consecutive days shows 99.9 % or better.
• Average page load (GTmetrix or similar) falls below 2.5 s on the home page and main portfolio pages.
• No recurring database connection or 500 errors during the same monitoring window.
• Clear documentation delivered in a readable format (Markdown or PDF).

If you have proven Namecheap VPS experience and can demonstrate past optimisation wins, let’s talk—I’m ready to grant SSH access and move quickly.