They're not THAT bad, compared to some of the other worlds I've played in.
I think I have a theory (WHICH IS PROBABLY 100% WRONG).
The updates may be slow because Sigma is the latest released world and thus Grepolis must update previous worlds starting from Beta (OR WHATEVER WAS THE FIRST WORLD). Hence, update time would be slowest for Sigma.
I mean, my theory does sort of make sense, no? I think it does
But if any of the mods know, please enlighten myself and the rest of the Grepolis Community.
-CheezeHead.