While that does, technically, "matter", it doesn't really matter to users. I've been using it for a few minutes and I too can confirm that it feels very, very fast. Which is all that matters. In fact, a few years ago, Mozilla confirmed that seeming faster is much nicer than actually being faster:
The point is, the Chrome guys executed well enough on their iOS app that the inherent performance issues really don't seem to be a problem (though I've only been using the app for about 5 minutes so my opinion is limited). And it's quite a pretty app. It brings just enough of the Holographic UI to look nice without looking alien on iOS. They did well.
http://www.johnwaynehill.com/blog/2010/06/16/perceived-speed...
The point is, the Chrome guys executed well enough on their iOS app that the inherent performance issues really don't seem to be a problem (though I've only been using the app for about 5 minutes so my opinion is limited). And it's quite a pretty app. It brings just enough of the Holographic UI to look nice without looking alien on iOS. They did well.