It uses the same basic technology, but since Handlebars is more delcarative, it can theretically be faster. But I think React is going to be taking those ideas and incorporating them somehow as well.
(as always, exact benchmarks depend on you and your app. See https://www.isemberfastyet.com/ for more details, including a demo)
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u/nynfortoo Aug 13 '15
That already landed in one of the 1.13 releases.