I'm on linux with a powerful GPU, if that matters. I noticed that I spend quite some time every day finding and killing tabs that hit the CPU. It's becoming a

I'm on linux with a powerful GPU, if that matters. I noticed that I spend quite some time every day finding and killing tabs that hit the CPU. It's becoming a distraction to my actual productive work: I'm dual tasking. The fans tell me when there's one tab stuck. It's very often the case. Why is the web so complex that so many sites need so much CPU/GPU power? What can you do about it, other than navigating with JS off?