Science &amp; Culture HELP! I can't stop winning w/ science when I'm going for cultural or diplomatic victory. How can I get fewer science and more culture? Can trade routes in NBW do this?

Settings:

* Settler
* Shoshone (So OP LOL :P)
* Epic Speed (Still don't know what this does)
* I think Ghengis Khan is my leader because I saw him show up as one of my units (Not sure if that helps)