Canon 90D CR3 raw files exteremly slow to edit

[v1ktor]

I recently got Canon 90D, which produces CR3 files. I've had Affinity Photo for over a year now, but never worked on any raw files. So when I began working on CR3 files I was surprised how slow performance was. When I mean slow, I mean I wouldn't be able to see changes I make for 30-60 seconds. Sometimes longer. Everything takes extremely long. Not only the raw editor is slow, but after I develop the image regular activities in Photo are extremely slow. Sometimes trying to sharpen images I wonder if I made changes or not. Everything is sluggish and slow.

So I finally got fed up with it and got a sample DNG file online, about 40 MB. From the moment I opened it everything was fast and changes almost instant. Nothing was as slow as what I've been experiencing with CR3 files. Even after developing image, all Photo activities are fast. 

I used Adobe's DNG converter app and converted my CR3 files to DNG. And what do you know, everything works fast. Much faster than CR3 files, 20x faster. 

Here's what I got:

- Photo 1.9.2.1035
- Windows 10 x64
- Intel core i7-8665U CPU @ 190 GHz, 2112 Mhz, 4 cores, 8 logical processors
- 48 GB ram
- Intel UHD Graphics 620
- Nvidia Quadro P520

I've tried using both built-in Intel GPU and Nvidia GPU as renderers, no change in performance. Both had slow performance editing CR3.

I'm including CR3 file and a converted DNG file for comparison. 

Would appreciate some feedback. For now, I'll probably start converting CR3s to DNGs.

IMG_0871.CR3 IMG_0871.dng

[Chris B]

Hey v1ktor,

It's fine for me so I'm a little surprised by this unless you're having an issue with OpenCL. Could you try disabling that for me please? It's in Preferences > Performance.

[DigitalVisuals]

I have users in our FB group who can't work with CR3 anymore, because very slow and crash systems.
No English speaking or writing. Most are working under Windows. Advise was disable CL support, but also then its not working.

[Ron P.]

Works fine for me. I can't try with HA, since my GPU doesn't qualify to use it.

[Greyfox]

Working fine here too, and with Hardware acceleration turned on. Sliders fully responsive in Develop persona and also subsequently in Photo persona.

[bt1138]

On 5/13/2021 at 8:36 AM, Chris B said:

Hey v1ktor,

It's fine for me so I'm a little surprised by this unless you're having an issue with OpenCL. Could you try disabling that for me please? It's in Preferences > Performance.

Don't you think that Affinity should push out an update that disables OpenCL by default? I had to turn it off, files took forever to open.

All of these people with problems and every time the advice is "Disable OpenCL accelleration"...

[v1ktor]

@Chris B Yes, it appears to be OpenCL issue. Performance is much better without it. One thing I remembered, I did enable hardware-accelarated GPU scheduling on my Windows and I did update drivers to the version that supports scheduling. Does Photo (or other apps) support GPU scheduling or at least been tested with it enabled?

@Greyfox Is your hardware-accelarated GPU scheduling enabled or disabled? In case you're not sure, more info here.

@bt1138 Yes, it probably should be turned off by default and only enabled by the user if he knows what he's doing. That's usually the case with other apps I've used. 

[Greyfox]

On 5/22/2021 at 1:12 AM, v1ktor said:

@Greyfox Is your hardware-accelarated GPU scheduling enabled or disabled?

Hardware-accelerated GPU scheduling is "ON", also Affinity Photo, Designer and Publisher all set to High Graphics Performance