use the latest version of Google browser
version 67.0.3396.62 (official version) (64-bit)
Open part of the website cpu is too high, more than 90%
machine is 15 mbp, 2.7 GHz Intel Core i5 (dual core quad thread?) ,
opening multiple identical web pages is the same. has disabled js , has uninstalled all extensions
is not aimed at some websites, and so is our management system, but these websites are tested on colleagues" computers, and cpu occupies the websites used in normal
tests
normally open websites

js

js

chrome canary cpu

I don"t know if it"s the model or other reasons. I hope the great god who knows the solution or direction doesn"t hesitate to comment
, I can also try to find out the problem, thank you.