mac & i - edition 01/2018:
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"Affinity Photo distributes its calculations much better on CPU and GPU than Photoshop. The "Red Lights" macro processed the 100 MPixel image on an iMac Pro at full load on all cores, 30 percent faster than the i7 (56 seconds instead of 81 seconds). Because of a bug the application uses only OpenGL instead of Metal on both iMacs."
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The bug has been known for some months and it would be nice if it could be fixed until the release of the new version.
Luka reacted to gkoeder in Affinity Photo Customer Beta (1.6.7 - Release Candidate 1)