Does someone has also issues with heavy-loaded JavaScript pages, e. g. using React or Angular? It's a pain to use/scroll on those sites. The most awful website I know using it is Facebook. It is so damn laggy, even with uBlock and Disconnect enabled. When I start having more than one Facebook tab open (together with WhatsApp Web) I sometimes grow the will to switch to Chrome. I could resist yet because I don't like Google's approach for restrictive extension web store.