My second monitor shows a out of focus image

[stijnh62926149]

Hi Guys, Im using the latest Lightroom Classic, and I've had the same problem with tthe previous editions. When I scroll trough my images in Lightroom, either Library or Develop mode the image starts out sharp, then a second later it get a bit blurry and stays like that. When I zoom in it shows a perfectly sharp image, but when zoomed out it stays a but out of focus. 

I'm using a BenQ monitor together with a MacBook Pro (15-inch, 2019) and I've had this problem for about a year, before that there were no issues.

Looking forward to your tips:)

Stijn

[TheDigitalDog]

If you disable GPU in your preferences, any difference? 

[stijnh62926149]

Thanks for your reply, No it did not make any change. It starts out sharp, then within a second there's a light blur on the image

[stijnh62926149]

*****

Small correction from my hand, the problem does not exist when I'm in Library mode, ony in Develop mode. 

[Inspiring_fighterFA21]

I'm having the exact same problem on my desktop computer with a BENQ monitor with a native resolution of 3840 x 2160.  The image is sharp upon loading but within 1-2 seconds it becomes slightly blurry.  This is a very weird problem, and a search on Google shows that others are having the same issue.  Solution??