One picture opened in Photo-Paint and Photoshop.
I constantly see this "effect" with different versions Corel Photo-Paint on different computers and different images (all hi-res images). In 100% view image look not good too.
The most appropriate is to make the comparison with the image in its original format.I see:Photoshop - A bit more blurred than original imagePHOTO-PAINT- A bit more sharp than original imageThese features can be advantageous for some images and vice versa.So much for PS as for PP.