I have a very frustrating issue with C1: all my thumbnails are really blurry and it affects severely my workflow ... it's impossible to do the culling, selecting and rating. Just to clarify, I am not talking about the previews (for which you can specify the default size) but the the many photos that you see when you hide the browser and the viewer space is replaced by a grid of many photos (the thumbnails!).
The issue is especially visible when the thumbnails are set to the largest size with the browser hidden.
I have tried to turn off and on the OpenCL and no change. Same with regenerating the previews (I tried that just in case).
The issue is present when looking at my MacBook Pro monitor but also when the Mac is connected to an external monitor...
I am used with LR which shows perfect thumbnails which are usable for editing and culling.
Please load the following photos in their full resolution to appreciate the difference.
This is a screenshot of the thumbnails in C1:
This is a screenshot of the thumbnails in LR:
Is there something wrong with m machine or is it normal??