The way the file move dialog currently works it shows the entire folder structure in a "tree" style, i. e. by indenting subfolders. However due to the fact that this requires loading all folders everytime the target picker opens, the loading time increases with the total amount of folders in Pythonista's script library.
This works fine with only a few folders, but it gets more problematic if you have more complex folder structures. Git repos (and their .git directories) and module installation packages (which tend to have a few subfolders for PyPI and such) are especially heavy on folder count. Since I have both a lot of cloned repos and packages lying around, and need a few folders for the programs themselves, my move menu is taking more than 10 seconds to load...
I might have a few more folders than the average user does, but nonetheless would it be possible to add an option to switch from a "tree"-style move menu to a regular nav menu, like the normal file browser uses?