They must have some bad computers. Other than the Engineer part, the map has VERY little going on, it just feels crazy because it's all strobing.
Outside of gameplay related things (doors/ control point/ health cabinets) there is only a handful of props used on the map.
I even tried to do my best properly hinting the playable areas, as well. I think it's optimized pretty well for a giant open box with a space ship in the middle of it. I'll keep an eye on it though.
Semi-related, I haven't heard many people notice the 30 cows that slowly launch from the map at one point. I should make it more obvious.