Performance in case of many overlapped edges

[esuig]

Hello,
I'm currently using Clipper 1 and it behaves really good. I'm evaluating to switch to Clipper2, exclusively to try to gain some improvement of performance in calculation time and I have a question about this topic. I usually use Clipper 1 to merge polygons that have many overlapped edges (like the case depicted in the picture); I have no issues related to unsuccesful merging, since the overlapped points of the two profiles are "really" overlapped, I mean that are exactly the same points, so merging always succeds. However, I see that if there are many overlapped edges, the performance of Clipper1 gets slightly reduced (I see that the method JoinCommonEdges is invoked and it usually takes more time of all the other processing inside clipper). Does this aspect gained a boost in Clipper2? or how could I speed up Clipper 1? Many thanks!!