Page Performance: Minify JS/CSS and tools

Hi team,

I have a question about improving page performance and site speed. I am in the process of getting a guide for my business on improving our client’s websites for baseline SEO. We’ve been using Google PageDeveloper and GTMetrix to learn where our problem areas are and how to improve them. No problem!

However, we are currently using WPMUDev and a plugin called “Hummingbird” to try and streamline our process. We are to a point where only a few more things need improving and “minifying js” and “minifying css” are all the remains. However, when we attempt to repair these, it breaks the sites.

Do you have any suggestions on any plugins or practices on minifying the JS and CSS of Enfold without breaking it? If we have a better idea of which Enfold may use, it will allow us to better tune our clients websites.

Thank you!