What kind of graphics card are you using? If you only/almost only play in Full Screen mode, turn on Vsync in the game options, and you'll be fine. The Vsync option doesn't seem to work for most people in Windowed Mode though (me included). If you play mostly in Windowed mode, you'll need to use an FPS Limiter.
There isn't any FPS Limiter available in the form of a mod. FPS Limiter is a third party tool which is tells your graphics card to throttle down the FPS. I don't use a FPS Limiter anymore, because I am using a beta version of my graphics card driver (nVidia) and EVGA's Precision X, which enables me to limit my FPS. Before I started using that, I used the FPS Limiter from MATY, so that is the only one I am familiar with. I can help with that one (or the beta nvidia driver+Precision X route, if that's what you're in interested in), but I'm not sure if that's the one you are looking to use.