also in about 1000 sites have 1 sites because the speed is too slow and affect their final ranking.
continues to watch video:
Cutts Matt explained
Central YouTube noble baby Webmaster channel, Matt Cutts and answer a webmaster are most concerned about the issue: how to determine the speed of "noble baby? He said there are about 1% times in the search because of the speed of the site and affect the final search ranking, and its effect is obviously.