you can set there speeds in the properties of the AI. Right mouse click on the AI and choose properties.
Use the speed and anim speed fields, the higher the number the faster they go.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit