When I clicked the button back and forth to switch pages, and then clicked to switch themes, the loading became more and more stuttering.

[ningwana]

Has anyone ever had this problem?

When I clicked the button back and forth to switch pages, and then clicked to switch themes, the loading became more and more stuttering.

It's probably a scene like this:
There is a vertical row of buttons on the left. Each time a button is clicked, the corresponding ui generated py class is instantiated in the right window to implement page switching. However, as the number of clicks increases, the theme switching becomes freezing.