@miguel84 thanks for reporting this. The screenshot shows that Composer class loader as the offending script. That’s actually only used for loading https://packagist.org/packages/enshrined/svg-sanitize as part of the SVG Upload module. I should be able to exclude (loading/including) it from most wp-admin and front-end pages. Let me see what I can do.
Thanks for feedback. Even after I disable “SVG Upload” option the script high load time is still present, so is something that needs to be fixed in the plugin code. Thanks again