LibreJS feature which stops the loading of un-needed scripts and javascript code.
To reduce loading times and cpu utilization especially on lower powered devices like the Pinetab 2 which ships with Angelfish as the default browser, it would be good to have the ability to stop the loading of third party scripts like google anaylytics (done by umatrix), and also stop the loading of javascript code on heavier websites like LibreJS allows you to configure. This feature would have to be easily disabled and configured per website to reduce website breakage, and not something enabled by default.