Reply To: APP stacking process slowing down with 157 LightsBy KeesScherer / Activity › Forums › Astrosoftware › Astro Pixel Processor › APP stacking process slowing down with 157 Lights › Reply To: APP stacking process slowing down with 157 Lights April 5, 2017 at 08:35 #13809 KeesSchererParticipant Yes i can see a visual improvement in noise level between stack 2 (left) and stack 3 (right). I will post-process stack 3 this morning in PI and upload the result to our Dropbox.