Brush stroke in zbrush looks rough/jagged/pixelated even when I hit control D multiple times

dsalin34

Why does my standard brush stroke in zbrush 2021 look so rough/jagged/pixelated even when I hit control D multiple times to increase subdivisions? If anyone knows how to fix this I would really appreciate the help.

I have attached a screenshot showing the instructor's version from the tutorial and mine. 

sprunghunt

do you have dynamesh turned on? - is this one of the default dynamesh projects from the lightbox?