Fuzzy output to Canon Pro Print Manager on Mac

I am having a problem outputting images to Canon Pro Print manager.

See below the fuzzy picture was exported tiff from DXO 9- latest release, the sharp picture was prossed in DXO 9 and then imported to Affinity and exported un touched to Canon and it fine ( had to export it to Affinity to flip it over, shame you can not do that in DXO- it is a basic thing to do) , so at a loss as to what is happening here- I need to be able to output to Canon Prof Print , if I have to keep using Affinity why do I need DXO?

What are your export settings for this fuzzy image?

So you’re exporting not to 16-bit TIFF but actually to 8-bit TIFF, resized to only 100 pixels across, etc. Why would you do that?