Most people just turn off power loss recovery mode to reduce zits on the surface of their models but another cause might be your SD card. power loss recovery is a setting that constantly writes to the sd card to “back up” the Gcode in case of a power outage. By swapping to a fast write speed card you can limit and reduce your zits. although the 40MB/s and 90MB/s look indistinguishable I've still gotten zits on the 40MB/s card as shown in the “Cute Mini Octopus” by McGybeer image shown above
all tests were done with exact same settings In Cura, I used a silk dual extrusion filament to better show off the zits.
(2nd edition) after noticing no difference even after the 2nd edition this could be due to the maximum resolution setting in Cura. which limits the resolution/size of the individual line segment paths the nozzle takes to "simplify" the mesh
The author marked this model as their own original creation.