New patch, turn down your graphics/sound
In the 5 beta games i played tonight, 4 of them are filled with people with negative sim speed. The reason is finally we are playing with bigger maps and more people. It just takes 1 person with low simspeed to slow everyone down.
I would think the beta is mostly technical people or maybe they just have slow computers. Please turn down your graphics and sound to the lowest possible if you don't have a computer with the recommended specs.