i'm running WZ in Bluestacks on my pc.
As you can see in the following screenshots, the cpu load is constantly high if you are in the world view of WZ (without doing anything there).
As soon as you switch to the research view, the cpu load reduces drastically.
I think the animated world is the problem.
Would it be possible to deactivate all these animations if the power saving mode is on?
I'm sure on mobile devices the same problem occurs.
So deactivating the animations should lead to a much smoother gameplay and lower battery drain.