I have purchased Affinity Photo for Windows a while ago and I am using it more and more, usually playing with HDR (raw 32 bit -> tone mapping).
What strikes me as very odd is the speed difference when saving an affinity project to my NAS (1Gb connection and conventional discs) compared to saving directly to SSD: there is no difference!
Saving to SSD on the same machine should be very noticably faster, but it isn't. How come?
Exporting to jpeg is blistering fast also to NAS...
I am using a Ryzen 7 (1700) machine with 16GB memory and 240GB SSD (Samsung 840), quite a performing machine in itself :-)
Personally I would like to see Serif not only dedicate itself to new features and apps, but also spend effort to bring speed improvements (competition is moving forward).