Impossible to activate all items

Hi All,
I activated the plugin and, the acceleration of the site would be truly exceptional if I could also set:
Minify HTML
Defer loading of the WP Roids generated minified JS file
Minify and collate CSS & JS in current Theme “ferentino”

I have to deactivate them as these involve the destruction of the front office. Can I do something to activate them or is it better if they remain deactivated?

The page I need help with: [log in to see the link]