Well, I could do that - but rather than only the speed improvements, it might be better to include the usual "Unofficial Patch" bug fixes; and if those are going to be included, I might as well include all of the other bug-fixes that I've made; and of course, most people would appreciate it if BUG was included too... and if I'm including BUG, I might as well include all of the other UI improvements and bugfixes that I've made -- but why stop there? Wouldn't it be better to include the vastly superior AI that I've written? And the balance changes to culture spread, religion spread, and so on? ---
You can see what I'm getting at, right? K-Mod is about making "vanilla" BtS as good as possible without changing the overall flavour. I wouldn't really want to strip the other stuff out to release a stand-alone speed thing, because I reckon the whole of K-Mod is full of improvements that people are going to want.