The new MacOS binary seems pretty good as a drop-in replacement for the Intel version.
However, it seems to take at least 1s to render a 61MPX image on an M3 Max MacBook Pro, which seems slow.
This suggests that there are some optimisation opportunities to come (eg, that the app is not really making full use of the GPU). This is tricky stuff; it took Adobe several years to make best use of the new memory model, where the GPU and CPU share memory. Lightroom used to eat all available memory but they seem to have put some effort into getting better performance out of the new hardware and it's much better now.
What are camerabits' plans to, once again, make image rendering speed class leading?