So I rewrote Backbone views to use a queue system that fires on requestAnimationFrame -https://github.com/danshearmur/backbone-fast-view

I'm getting pretty good results with swannodette's benchmarks - http://danshearmur.github.io/backbone-fast-view/

I'm getting approx 150ms in Chrome for benchmark 1 and about 400 ms for Chrome for benchmark 2