The 'Play' button is something we'd already implemented in a previous prototype, but it wasn't ready enough to be included in this release. It will show up in a future release though. :)
Also, by _slow_, were you referring to the actual rendering of the network when you adjusted the time-slider? Or the initial loading of the network itself? Because the former is actually pretty fast (if you are using Chrome), and the latter is something that we've tried to optimize as much as possible, but there are limitations.
Also, by _slow_, were you referring to the actual rendering of the network when you adjusted the time-slider? Or the initial loading of the network itself? Because the former is actually pretty fast (if you are using Chrome), and the latter is something that we've tried to optimize as much as possible, but there are limitations.