In krita, I cannot work with multiple items in hierarchy. When there are nested groups and layers in a group, Krita starts to work poorly with any Transform manipulation. I created a 10x10px canvas and filled one layer with red, then grouped and copied, and then grouped it and repeated copying and grouping again. As a result, there were 2 ^ 10 + 1 elements within one group and Krita began to slow down a lot. In my project I have a lot fewer layers, but when I try to move the group, Krita takes about 10 seconds to process this action. The only thing I came up with was to simply flatten the group into one layer and move it where needed. The cloning layer allows you to move it so that it can be moved, but it does not go smoothly.
Video demonstration:
https://drive.google.com/file/d/1P14yYTlS8C7ZiWqXqj7yP8yzbDKoE9zA/view?usp=sharing