Smoothing image trace sketches

I use image trace to vectorize my hand-drawn sketches. I use the "sketched art" preset. I set corners to "0", expand it, and then use the smooth tool slider. But still I'm left with some sharp, jagged edges, which I do not like. I like curves and round corners. So I have to individually adjust these sharp corners, which can be kind of tedious. Any hints on how I get better results without the sharp corners that I have to correct? Thanks.