Time dilation is officially capped at 1/10th of regular speed. Of course even beyond that threshold the additional load can have an effect.
These big battles are the exception, and they certainly get the outside attention, but there are many more smaller fights for every one of these big ones. And the small ones are typically over far more quickly and aren't fought in time dilation.
These big battles are the exception, and they certainly get the outside attention, but there are many more smaller fights for every one of these big ones. And the small ones are typically over far more quickly and aren't fought in time dilation.