Inkscape has the simplify tool, which removes some nodes along the path and makes it smooth. Is there something like simplify, but which instead makes the path more edgy? The path is traced bitmap, so doing so by hand is impossible.
For comparison, this is a bitmap traced and post-processed as vector (probably in Photoshop and then Illustrator), which keeps the edges of the color patches and gives it some energy:
while this is my attempt (with a different image) to produce similar effect in Inkscape, where, however, every smoothing from the trace leads to rounded corners and theresult feels blunt: