Same here. If Emacs is your operating system, then it's such a natural extension. And if a site doesn't work in Eww, then I consider it shoddy craftsmanship and refuse to open it in Firefox - so it's an excellent tool to stop procrastination! Pity HN works fine.
That mentality is so funny to me. I felt the same regret with Steam Proton suddenly allowing me to procrastinate with games I hadn't been able to play before.
Well then! I just fired up eww for the very first time, and I'm apparently having a little bit of trouble with posting this comment. The text field seems to be struggling a little bit, but otherwise I'm quite impressed with how well it seems to handle HN.
Compile your own emacs for your particular processor using all the available optimizations and you might be running much faster than your OS's emacs. You can also opt for other speedups and enhancements which you won't find in the normal generic emacs.
It's even possible that if you're on an old netbook, your emacs is using optimizations which don't exist on your machine causing all kinds of extra processing. Who knows. I also don't use GTK at all, this is a massive speed-up.