MySQL Optimization & Server Performance Boost

I'm looking for an experienced freelancer who can help me significantly improve the performance of my project, a PHP Yii 1 framework based application.

The existing state of the application is not optimal with slow response times, long API process times, lower than desired overall performance, and a need for faster processing of new requests and server enhancement. I need an expert who can deep dive into the issues and provide solutions specifically in relation to:

- MySQL normalization to enhance speed and efficiency

- Optimization of all database queries

- Enhancement of API endpoints to reduce process time

- Streamlining the rendering of pages to increase speed

- Prioritizing performance improvement for search functionality, data processing, and user authentication

Key skills I need include:

- Proficiency in MySQL

- Strong experience with server optimisation

- Familiarity with PHP Yii 1 Framework

- Proven track record in database performance enhancement

This role requires someone who can thoroughly investigate the existing issues, provide plans for improvement, and execute those plans to significantly boost the overall performance of my project.

MySQL PHP Linux Apache Software Architecture