Seems fine for me. A bit of delay between non-integrated tools (wordpress -> mediawiki -> phpbb), but not unbearibly so.
I think apache (assuming that is what server is running) has a benchmarking tool called ap.
As for card/sandscape, with the nature of the type of game we are developing, I don't think lag will be a real concern. Not unless we are wrong about the pace of the game and it ends up being far faster (think Yu-Gi-Oh speed of play vs Magic the Gathering).