Yes, I loved the strokes overshoot too! But it was indeed slow... I remember waiting up to 10 minutes for the generating lines phase. Not sure how old it is, but it was already there in C4D R11, so I guess the code was never really updated to take advantage of modern multi-threaded hardware.

Sketch and Toon in #cinema4D was so ahead of its time for NPR, it's sad it was never upgraded. Modern renderers don't really offer the same features, like cloned outlines with variations that aren't constrained to the geometry. It was fun for quick storyboarding, like these images made with R17