I've been noticing a significant slowdown on certain sites since upgrading to Chrome 50 (at least I think it started then). The sites I see the problem on are goodreads.com (logged in) and fivethirtyeight.com. Disabling adblock makes Chrome fast again. Chrome is just as fast as normal on most other sites. On these sites Chrome shows a huge delay in loading parts of the page and a maxed-out CPU. Is anyone else seeing this problem?
Thanks. Of course when I revisit fivethirtyeight.com now it seems okay without doing anything. That's the one I just noticed this morning. The goodreads.com problem has been persistent and dramatic for me. With adblock off a page takes a few seconds to load, and with it on it takes about a minute. I ran a profile on it and it seems to show a major slowdown in the checkLoaded function in include.preload.js. I'm not sure of the best way to troubleshoot what is actually happening there. Of course it's really only bad on the logged in pages, so if you don't have a login if may be hard for you to take a look.
I see the same problem with Chrome 50 portable, and with the dev build of ABP. BUT I managed to download Chrome 49 portable and I *don't* see the problem there. There is definitely something going on with Chrome 50. I am on Windows 10, by the way.