GPU is wasted when there are many people?

One thing I wondered is how is it that when a world is crowded with people, even in robotics and invisibility, the GPU is still fully loaded and consumes the same amount of power but is only about 75~90% efficient?

It’s way more than CPU synchronization leading to idle waste, so there seems to be some problem?

Even if you don’t run physbones or anything else at all, and just have the robot, it can still cause a significant drop in efficiency in an empty space.

Now it’s not allowed to inject into VRchat, which makes it kinda hard to find the cause of the problem.