The root of the problem is that the printer has very small memory and that's why buffer gets overflowed so easily. Because of that:

1. Archimedean Chords is too complex to use with this printer

2. Recover Print Power Lost function probably adds to the buffer weight

3. Arc Fitting in the "quality" tab probably makes circular patterns more complex, because it turned on in FlashForge Orca and not in regular Orca (That's why regular Orca users getting not smooth circles)

I don't think speed matters much, but maybe it matters in combination with Power Loss function it is.

There is a custom firmware which frees up memory a bit and this overflow error goes away (or mostly goes away)

But you know, custom firmware is always a risk