A bronze crusher requires 256 ticks at 16 GU/t to crush a single block of anthracite coal. It processes 4 blocks at a time, resulting in 1024 ticks (51.2 s). At 32 GU/t this should be 512 ticks (25.6 s) and at 64 GU/t 256 ticks (12.8 s).
Here are my measurements:
32 GU/t - 26 s + 4 s
64 GU/t - 13 s + 10 s
The first duration is the time it takes the animation in the GUI to finish, and the second one is the extra time it takes for the crusher to finish the recipe and start a new one.
If I remember correctly I’d already noticed this in my previous world, but didn’t post about it.
Ah… so what’s going on here? Why the extra time?