Speed Optimization for E-commerce Site mobile and pc responsive

I'm looking for an expert to optimize the speed of my e-commerce website.

Key areas to improve:
- Page load time
- Server response time
- Image and media optimization

Additional info:
- Currently, I'm not using any performance optimization tools or plugins.

Ideal Skills and Experience:
- Proven experience in optimizing e-commerce websites
- Strong knowledge of server response time metrics
- Expertise in image and media optimization techniques
- Familiarity with tools to measure and improve website performance

Please provide a portfolio of similar projects completed.