https://community.adobe.com/questions-563/grainy-images-since-acr-9-12-1-182616
Grainy Images since ACR 9.12.1 | Community
Hi, I found that since the recent update (9.12.1) the image quality in the ACR-windows ist really bad.The quality returns to normal, by selcting the GPU...
grainy imagessinceacrcommunity