What settings to make firefox fluent again?

I have been user of Firefox for many years now, always setting up as default browser and in early times even uninstalling Edge, but within the last year i see more and more websites getting sluggish in firefox, Sites that dont fihish to load, blank pages, opening links taking long time. Facebook, ebay, amazon and many online stores are getting worse by the day At the same time i open Edge and it fly, no sluggish nor blank pages, no delays I dont like edge, i am not interested in using it Is there a bunch of settings i can tweak to make Firefox more fluid in those websites? Thank you Frank