I'm on Linux. I stubled on webrender from a blog yesterday, and enabled it. My observation was the same - high CPU usage, so I then disabled. Got 84.0 today, an

I'm on Linux. I stubled on webrender from a blog yesterday, and enabled it. My observation was the same - high CPU usage, so I then disabled. Got 84.0 today, and gave it another go. It appears to be behaving well so far. So I'm guessing there was some fix in 84.0 that made it work for me.