Slow App perfomance


I am trying to get my app ready for publishing but I am having issues with speed of the database. It is a generator app that has random pickers one each page attached to the various databases they pull from: however when I uploaded the app bundle to play console for internal testing it is incredibly slow and does not load everything. It also visually differs between what I am seeing in the previewer and live on my phone.

If anyone has any thoughts please let me know,
Ash Kefi