Blazing fast in what sense? Creating nodes, Updating the ui, bundle size?
Both Preact and React are fast enough.
I will choose Preact, because is 3kb.
But if you want to use hooks with preact you have to install an unstable version preact@next because the stable version doesn't have them.
Preact entered beta a few weeks ago, and so far it's been quite stable. I'm using it for 2 projects - nothing to report bar one quirky TypeScript typing.
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