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I just bought Affinity Photo and I'm testing it out on some PSDs I have from Photoshop. When loading small ones (2-3mb) it loads them but takes about 10 seconds to open them (which seems a bit long, they open in under a second in Photoshop), but when I tried to open a 10mb file it just didn't open at all. No error, it just stays on the empty AP window with a little note in the top right saying "Loading 1 document" but it never loads. I waited to see if it was just taking a long time but after 15 minutes it still hasn't loaded. I've attached a copy of the PSD I tried to load. ProsperityMap After Battle.psd

When I saw that Affinity Photo was getting a performance overhaul in 1.10, I thought maybe this issue had been fixed, but it still exists in the latest version: Affinity Photo struggles to open PSD files with a lot of layers, I've attached an example file, it takes about 15 minutes to open. It also doesn't really render correctly, many of the colours and effects are subtly off. I know PSD is a difficult format, but Nomacs (another image viewer) is able to open this same PSD in less than a second and it renders correctly. Nomacs uses a library called libqpsd to read PSD files, it looks like its free and open source, maybe AP should use it too: https://github.com/nomacs/libqpsd/tree/7472334d8e1ee9b37c18b9c7568ac91e5af4c9db I really think it's important that Affinity Photo handle PSD files well, if you don't it will greatly hinder people moving across to this software from photoshop, right now its the only thing stopping me from moving across completely. ProsperityMap.psd