I have the same problem on my 2015 Macbook Pro, I can do all usual work I want, but website are getting slower and slower burdened by heaps of JavaScript, autoplaying video and what not. Sometimes I even have input lag when typing in a search bar(!). The Ikea website is a good example of bloated website.
Adblock only helps a bit, and most websites don't work without javascript.
Adblock only helps a bit, and most websites don't work without javascript.