Current questions and answers regarding the map editor.

Hello everyone! I haven't played Heroes 5 in a while and decided to jump back in. I noticed that the shadows on the objects have changed. It's as if the quality of the shadow rendering has decreased, and their sharpness has increased when rotating the camera. The same thing happens in the map editor :( . It might not be noticeable in the screenshots, but in the map editor and in the game, this shadow rendering isn't very good. I didn't have this problem on Windows 7. It appeared on Windows 10. How can I fix this?:o
And is it possible to disable shadows somehow?