Using concentric infill on 1st and last layer. The speed is high at the start and slow at the end. IMO this is backwards! We want the initial extrusions slow at the start then faster towards the end... actually I would prefer the entire 1st layer be slow. Why bother slowing it down as it finishes the periphery? No value to that I can see at all!
On the topic of speed. Speed is a function of temp. As such I set the temp and then S3D is deciding on the speeds. I see no value in that! *I* need to set the speed and I want it for the entire object if not set per layer as I also set my temp per layer. IMO you should remove the automatic speed setting!
