I already played via internet and there is not the slightest remarkable lag.
The "sending volume" still is smazingly low, I should have switched the sending panel on as I played up to the 7th round with over 20 enemies in some waves but I don't expect more than 100 Bytes/second.
Maybe once a peak here and there, but not all the time and even with lag (my computer for example has some problems and freezes every now and then) it gets all post-calculated without jumps.
The only thing that bothers me is, that I only could connect via internet once.
Somehow the engine seems to be really buggy for finding online-servers. -.-
btw. you can
download the latest version on my homepage or by clicking the link.