Definitely Fakebook is slowing. If you have a parasitic connection (aka notso HotSpot) it is all the more noticeable because the owner of the router may be watching TV via. As a result all the JavaScript modules that Fakebook invokes may not arrive in a timely fashion so the dependant ones timeout. I did try counting the modules once, and on Fakebook without any "apps" (aka snoops) - I gave up at 100, about halfway. I kid you not, no surprise how Cambridge Analytica scraped data, not to mention the dozens of coordinated inauthentics in St Petersberg who are watching you.