Can't get speed score above 90 for both mobile and desktop

Can't get speed score above 90 for both mobile and desktop: https://developers.google.com/speed/pagespeed/insights/?hl=nl&url=https%3A%2F%2Fqmm.nl%2F

Even with all Hummingbird Minify options on and everything in the footer (which breaks my site lay-out) the score does not go up. Actually, it goes down.

I've spent many hours trying many different minify toggles to get to a point where most JS and CSS are combined and minified, without breaking my site.

For now, it's breaking my brain! :slight_smile:

Hope you can help. If I can get it working on this small site, I can replicate the settings to the site that matters most.