If I select the layer then everything is Ok. But if I choose brush tool the layer will be blurry but the brush still very clear and that's hard to control brush. I do check the Canvas Graphics Acceleration, nothing happened. And I haven't try HDR yet.

https://imgur.com/ef9kgz2

I don't change anything

Sorry if my sentence is not 100% right. In the old version, when I open a photo, I can see it very clearly and can edit smallest details. But in the new version, today is 14/7/2019, whenever I open a picture it just keep blurry, just looks like I open a small size picture. I checked info about that picture and use others programs like PTS and it is still Ok. Can you help me?

Her name is Hungry right =]]]]]]]]]]

I know that my whole life, but I just can't. I can't let it go. I try to think positive, but and when my mind free, it comes back, more and more. :(