Gigapixel takes 38 minutes to process 1 picture

I started using Gigapixel.
The preview takes only 20 seconds to render. But saving the image takes 38 minutes.
5760x3840, 1.0x, standard, denoise 36, remove blur 20.


Can I improve this in the settings?

It uses discrete gpu and Intel VINO, Memory shared is set to Medium.