It’s really bad at using system resources effectively. I’m sure this is why it’s so slow at exporting developed photos, and it’s probably also why it’s slow to respond to controls. Here we see Lightroom using barely half the CPU exporting 18 photos—something that is trivially parallelizable to 18 cores (since the photos are independent). In contrast, the old Bibble Pro, which is now available as Corel Aftershot Pro, would always put the whole processor to work.
