[Cthulhu_]

Using custom code or running on the Web are both not valid arguments for poor performance; in the given example, rendering in something else than a table (like, say, a custom canvas view) would already improve performance by miles. Running in a terminal (stream via ssh) would also be fasterer.

[ralmidani]

I'm not making excuses, but comparing a custom solution like Bloomberg terminals to a versatile platform like the Web is not a fair comparison.

Despite the inherent performance disadvantages, people are stepping up and working on pushing Web applications to run faster. The efforts of the Ember team and others should be commended rather than ridiculed.