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The past few years’ browser focus on speed has been great for us and our users. We’ve seen a huge and dramatic performance boost on benchmarks like Sunspider, Kraken, and Octane. But, these benchmarks, often crafted by JavaScript VM engineers, test raw JavaScript performance, which is rarely the bottleneck we have in our apps. These days, our performance bottlenecks are oftentimes DOM, <canvas> API methods, SVG. Those are our priorities. So then why do we see all browser vendors competing on ra...