Speed Up My WordPress Website

My WordPress website is currently running slower than usual. I'm looking for an experienced developer who can identify and fix the issue to get the site running at its optimal speed.

Key Requirements:
- Diagnose the issue causing the slowdown
- Implement solutions to improve the website's speed
- Ensure the site maintains its functionality post-fix

Ideal Skills and Experience:
- Expertise in WordPress development
- Proven track record in optimizing website speed
- Ability to troubleshoot and resolve tech issues in a timely manner

Please provide an overview of your experience in this area and share any relevant past projects if possible.