Jim Caruso of M1PR, Inc. d/b/a MediaFirst PR - Atlanta, quoted in the media, Member of the Forbes Agency Council

Website Hosting Agency: Website Performance, & Issue Resolution

Web Hosting Agency: Fix Performance; Track & Resolve Issues

Here Are Tips & Plugins That Improve Websites

You might start your search with a website performance test by GT Metrix at gt.net

Here is a post on WordPress administration. It lists some settings, themes, plugins, and other baseline installation requirements for speed, stability, security, and usefulness.