I'm not sure if this is just the case with Android. But unfortunately, it has always been that way since I can remember. For moving 1 file "quickly" to a freshly created sub folder, a user needs to navigate the whole folder structure to get there...
Hey @Ilian P. - thanks for taking the time to share your thoughts on this with us.
I've logged your feedback in our system and you can let us know if you have anything else to add.
In the meantime, you can maybe try using the search function when moving your files in the Dropbox mobile app on your Android device.
I hope this helps a tad!