NO Changes after installing the PluginBrowser Info Environment
This package will rework your website pages to do several things like lazy loading images, lazy loading JS scripts, making sure JS is loaded at the bottom of the page and CSS in the header, and other improvements.
To get the most benefit from it, you need to try the different optimizations possibilities.
If, however, your site is image poor and doesn't load JS scripts, or is already heavily optimized, you might not see that much improvement.
I can't really say what your case is unless you give me a website address I can look at.
If you enabled HTML compression, Image lazy loading and JS script deferred loading you'd probably gain a few points in speed tests but given how optimized it already is I don't think your user would really feel the difference.
The package has to parse the page in order to be able to optimize it and if there are errors in your HTML markup like missing closing tags for instance, the parser will break. Can you look in Concrete's logs if you see any error message?
In your page test I see you have:
Element style not allowed as child of element div in this context. (Suppressing further errors from this subtree.)
On another page you have:
Element ul not allowed as child of element span in this context. (Suppressing further errors from this subtree.)
THis is the kind of things that is considered erroneous HTML and will break the parser.
You can correct the errors on 1 page and see if it makes the package work on that page.
Or you can ask for a refund which I'll give you of course.
Like I said your website seems pretty well optimized already so I'm not sure you even need this package.
Let me know what you want to do.