Titan build time
Maybe it's so low because it's the beta, but does anyone think the time to build one should be beefed up considerably? Not only would it solve any issues with rushing one, but it would also give much more sense behind the 25-100% construction limit researches.
Personally, I think an extra pregame setting (like the income rate and culture spread settings) that modifies titan construction rates would be the best way to go.