A post to our forums has word of a glitch in the FireStarter demo that will be addressed by a patch that will probably become available tomorrow (thanks Enahs). Here's word:

Thanks for the heads-up. We have to admit that while compiling a demo there was a mistake made. We are preparing a patch to address the character speed issues, as well as clarify the RPG aspect of the game. The patch should be available tomorrow. Please, keep an eye on www.firestarter-game.com. And sorry for the inconvenience.

FireStarter team