Thank you for the details, I have found the problem. For some reason the when the plugin was checking if the current page is the front-page it got a false result everytime. This meansi, that it to loaded on every element on the front page, which caused the huge delay in the execution.
I've added a minor modification to the plugin code via the plugin editor and noted this as a bug to further investigate. The front page should load now normally as expected.Best,
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