hey Zjonsson, I think this is awesome, have you considered having a webworker run in the background to send the data to the browser and then switch once it has finished? The time to interactivity (and visibility) of crossfilter is a problem, and I think you did a great job solving that problem, I just don't find the interactivity to be as great as I was expecting (then again I'm on a slow connection currently).

A great idea, however the web workers would have to be semi-persistent as the initial build of the crossfilter object takes some time (i.e. I wouldn't spawn a new worker on a new request). Here I simply increased the heroku nodes to respond smoothly to Hackernews traffic. I'm pretty happy with the results.

Cool app! Besides crossfilter, is the source available somewhere? Thanks.

Thanks for the comments, I copied to github for cleaner access to the source. Let me know if this is helpful: https://github.com/ZJONSSON/icequake.herokuapp.com