Just to give you designers a heads up: I wanted to improve my pc performance, I have a diesel gaming laptop ($3000), but its getting pretty old now.
I've been fideling with my computer for ages trying to optimize performance. Today, I installed PC Matic (you know like on TV) and I just came back from martial arts class so I can see how it is going to handle my gaming.
BTW, PC Matic, specifically identified Caveman to Cosmos as the only program on my computer as "highly fragmented" and then it compressed the distance to read better. The program said the issue is fixed. This is from the defragmentation part of the fix.
I would say there are only two things slowing down Caveman to Cosmos and it isn't the amount of data. (My Skyrim game is like 15.5 GB compared to C2C's 1-1.5 GB...).
I would say it is the distance of the files, not compressed enough, and the beyond horrible gamebryo engine. I hate this gaming engine. If someone can tell me how I can get civ 4 to run on one or two processors that would help, that usually helps with the horrible engine, also used on other games.
EDIT: I'm already experiencing huge performance increase. The Sevopedia has much less lag for example, about to start up a new game.