It's not just performance, it's functionality. Chrome does not block requests reliably at startup when opening saved tabs and doesn't allow CNAME uncloaking. A

It's not just performance, it's functionality. Chrome does not block requests reliably at startup when opening saved tabs and doesn't allow CNAME uncloaking. Adding something along the lines of CNAME 60 puppies analytics.google.com. to the DNS config is enough to fool uBlock Origin on Chrome and requires a special rule.