lower segment count on smooth parts

src/libslic3r/GCode/SeamPlacer.cpp

@@ -1394,7 +1394,7 @@ void SeamPlacer::align_seam_points(const PrintObject *po, const SeamPlacerImpl::
 
             // Curve Fitting
             size_t number_of_segments = std::max(
-                    std::max(size_t(1), seam_string.size() / 80),
+                    std::max(size_t(1), seam_string.size() / 200),
                     size_t(segments_count / SeamPlacer::seam_align_seams_per_segment));
             auto curve = Geometry::fit_cubic_bspline(observations, observation_points, weights, number_of_segments);