These numbers are from a browser benchmark on different browsers (iOS stock vs Chrome) , so you are using the numbers out of context. The analysis above is not valid.
Look here how much Kraken differs between Chrome and Safari on the same computer: http://macs.about.com/od/WebBrowser...2014-Whos-Number-One-and-Does-it-Matter_4.htm
2320ms for Safari and 1462ms for Chrome.
