I have this issue with my NEJE diode (at least this is the closest description I can find.)
"I would like to request a feature that might only be for galvos. I’d like to see a continuous rotation mode that can keep up with the speed galvo’s can run. If I use a split size that’s the same as line interval when using the rotary, the time to complete the job is three times as long compared to engraving in cylindar correction mode. Larger split size lowers job completion time but introduces gaps and overlaps on round objects that don’t have the same diameter across the entire area to be etched."
The horizontal lines are actually fine, but the diagonal and verticle lines are barely burning. It is layer 4 Outer Line