I would sincerely love to know how to make Firefox work this well for me. For reasons I still can't decipher, the browser tends to slow any computer I run it on

I would sincerely love to know how to make Firefox work this well for me. For reasons I still can't decipher, the browser tends to slow any computer I run it on terribly no matter what I do or which version I run. I've noticed this across multiple machines. Yes, I often leave dozens of tabs open but Chrome (combined with Great Suspender) never gives me trouble on this. If anyone can suggest any sort of fix, i'd love to leave the snooping, prying Google browser behind finally.