QPrintPreviewDialog preview text is low quality on some displays

QPrintPreviewDialog print preview has very blurry and at worst unclear text even at 100% zoom level. This occurs even when the source looks clear on the same display.

The drop in text quality seems to be dependent on display. See the attached images of loaded webpage and its printpreview on two different displays.

Poor text quality:

"\\.\DISPLAY3" Depth: 32 Primary: no
Geometry: 1600x1200+3840+246 Available: 1600x1160+3840+246
Virtual geometry: 8000x2160-2560+0 Available: 8000x2080-2560+0
3 virtual siblings
Physical size: 410x310 mm Refresh: 60 Hz Power state: 0
Physical DPI: 99.122,98.3226 Logical DPI: 96,96 Subpixel_None
DevicePixelRatio: 1 Pixel density: 1
Primary orientation: 2 Orientation: 2 Native orientation: 0 OrientationUpdateMask: 0

Good text quality:
"\\.\DISPLAY1" Depth: 32 Primary: yes
Geometry: 3840x2160+0+0 Available: 3840x2080+0+0
Virtual geometry: 8000x2160-2560+0 Available: 8000x2080-2560+0
3 virtual siblings
Physical size: 527x296 mm Refresh: 59 Hz Power state: 0
Physical DPI: 185.078,185.351 Logical DPI: 192,192 Subpixel_None
DevicePixelRatio: 1 Pixel density: 2
Primary orientation: 2 Orientation: 2 Native orientation: 0 OrientationUpdateMask: 0

Steps to reproduce:

1. Run the attached project (based on Qt printme example)
2. Hit CTRL + P to open
3. Change zoom level to 100%