Does it work? I have tried with it on and off, hard to tell any difference.
for my device it works like this:
- turn on power saving, then restart.
- game become 30 fps at max, all effects and texts are delayed to the end of the turn.
- if you change graphic setting, all “power saving” effect completely gone and i assume is replaced with highest graphic setting available. to undo this is to restart.
- regardless of your graphic setting, at restart, you always have the same setting if you turn on power saving.