Hey, just wanted to post this here, maybe the devs will read it and try to come up with a reason for why this game works this way. (Hint: It might be because it was developed on a 64bit system.)
Anyway, both me and 2 of my friends have computers that run on a 32bit system. (XP home edition), and we all have severe lag problems when running CC, especially when there are any explosions. It's definately not an issue regarding our computer specs, We all have at least 3.0 ghz dual cores with the latest graphic cards and drivers, and a minimum of 4gb of RAM.
However, 2 other friends of mine have computers that are relatively shitty, dual core 2.5ghz's, Nvidia 8800, 2gigs of RAM. The main difference, however, is that they both have Windows Vista as their operating system. When they play CC on those computers, neither of them have any lag at all, unless they spawn something like the 0 division bomb.
The lag problems various users experience when playing CC could be the result of a poor port for XP32, although this has yet to be officially tested. It could be because 32bit systems just run slower than 64bit, I don't know, I'm not a computer wiz like the guys at Datarealms.
If people help post their operating systems and specs,
"Video card doesn't come into play at all, it's more important to know the CPU. Also, have people post resolution as well, otherwise you'll be comparing apples to pineapples."