The bug is simple, once i whitelisted a domain, i expect libreJS not to intervene with scripts used by that domain.
But in reality LibreJS stil analize every script as it comes. This slows down the site.
In addition, LibreJS have some side-effects on the running scripts - in my case, i attempted to open a google docs spreadsheet, that contains information in several languages, as long as the libreJS is enabled - the content in other languages does not appear properly (even if all scripts are allowed for the page)
I would love a report only mode for the libreJS - where the default behavior is to allow all reports but provide the site report (the torch can be color coded)