I bought Affinity Photo yesterday. It's been pretty good so far, but I'm having a lot of problems with cutting objects out of photos.
Here is a video displaying the issue. Notice how the refined parts become frayed and messy. (Also notice how slow it is)
I have seen both of the in-house tutorials on cutting objects and refining selections.
I have also looked at the information in the "Help" menu in Affinity Photo.
Here are my machine specs:
Macbook Pro Retina - Early 2015
Processor: 2.7 GHz Intel Core i5
RAM: 8 GB 1867 MHz DDR3
Graphics: Intel Iris Graphics 6100 1536 MB
Operating System: El Capitan 10.11.2
Am I doing something wrong?