Probably two different issues then; for me it crashes even with the oldest 4.0 build I could find (version: 4.0.0 Alpha, branch: main, commit date: 2023-07-20 20:13, hash: 3e88a2f44c41). 3.6.4…
Ah thanks I guess not a bug then. I will close this.
I see the same performance drop, more specifically the shadows option seems to be the main culprit. Enabling that gives about 1/3 the frame rate compared to when they are disabled.
For me it crashes no matter what output format (either image sequences of movie) is chosen.
It would be helpful if you could add which version/platform/hardware you tested with (might be macOS specific?).
It happens with any blend file, you can just render a few frames of the default cube.
Might be the same problem/bug as #113542, not sure about that.
Closed this as I no longer have this macbook to test on.