have you checked belt tension to make sure it's not too tight or too loose?
Either or could be introducing artifacts.
After that, I would look for anything in the mechanical system that could introduce slop.
if the machine is nice and mechanically well tuned, I would consider running a quick temp tower to verify that you're printing at the right temperature. if it's not that, I would blame the slicer.
that said, do the net cups fit? they don't have to be pretty.
My brother was trying to print these, and kept having problems using cura; where the corners of the net-hole-thingies caused slicing artifacts and under extrusion. I could never talk him into trying the fuzzy-skin-spiral-mode alternative i came up with. (fuzzy skin is a random "experimental" feature that I found makes for a great mesh filter when printed in spiral.) (i mean I can't even get him to give up cura for prusaslicer)