Yes, it's puzzling because you'd think there would be some kind of flow control.
I saw that my "minibuffer" was getting overrun and that was causing the glitches, so let's boost the size. The buffer has gone from mini to maxi: 8 bytes to 16k and now I said what the heck, 1 meelllion bytes.
Paper Graphics
Using the 144 vertical dpi (which overprints in multiple passes looks kinda odd) but 72 dpi looks good.
Triple Dump