What is the current guidance on this subject - even the latest RT offerings score poorly on this metric - see the following link, for example of a new site using the RT Requiem template:
gtmetrix.com/reports/www.joomla33.devsoho.com/yU2IoH57
. All this JS is being flagged:
344.8KiB of JavaScript is parsed during initial page load. Defer parsing JavaScript to reduce blocking of page rendering.
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