Loading time and performance

Hi,

I’m looking for someone who knows perfectly the optimization of loading time and general performance of a website.

> Optimization of the site resources management (minification, css concatenation, combination of CSS / JS files (defer or async attributes to .js files), CSS background image and background position, scripts below the waterline, reduction of http requests, browser caching, image compression and file optimization, transformation of images into CSV…)

> Hosting optimization (many possibilities and options) as well as CDN optimization

> Optimization of the mobile version (use of conditional instructions (mobile, desktop)…).

> Search console GG

The site is developed under Word Press.

Thank you,