Working my way through it. Learned about/implemented caching, minified code, compression, and a couple of other things. About to tackle the render-blocking stuff today. I tried to implement async to the Java stuff but no joy, tried a plugin that claimed it moved JS under <?php wp_footer(); ?> but no joy. Took a backup of the site, going to give the JS stuff a go myself, and go at it like a toddler to a birthday cake.

After that I'll redo the images/text, which seems very straight forward. Thanks again for the input, put me on the path to find a few cool tools.
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