I've noticed the internet becoming generally slow and laggy over the last few years for older computers and devices. Things from around and before 2015 to 2017 are becoming pretty unusable for doing basic web app tasks.
It works totally fine UNLESS you load something like a crazy landing page with animations. I always end up having to kill Firefox and prevent that site from opening.
One unexpected benefit of LLMs is they’re more performance friendly, I can query the docs of what I’m working on without loading the docs themselves.