it is noticeably !!!
Bets are very fast for me. Far under 1 second. Sometime betting pauses for a moment when someone withdraws. I assume SatoshiDice locks the database for writing during communication with the Bitcoin daemon to avoid race conditions. Better safe than sorry.
I think its your CPU that causes that. Or some program loading in the meantime.
I tryed runing various machines, same result ... so ...
It was a glitch on api win response , now is fixed, working ok !
standard troubleshooting, and then it is all about the occasions when you win, it can not be so many other things that were wrong than API