Prestashop Optimization and Troubleshooting

I am facing significant performance issues on my PrestaShop site. After changing the hosting, my website has become very slow and is consuming 80% of CPU resources. This is impacting all pages of the site, including the homepage, product pages, and admin panel. When returning to my old hosting, the problem persist.

I am seeking an experienced PrestaShop developer who can:
- Diagnose the underlying issues causing the high CPU usage and slow loading times
- Optimize the website's performance
- Ensure all pages are loading properly
- Debug

Experience with server management, PrestaShop optimization and troubleshooting is a must.