Very slow and unresponsive when open

Every time with new update, it seems the app would take much longer time just to open the app itself. In latest version, it takes almost 30 seconds just to wait for the interface to fully loaded, during that time the screen is unresponsive, which is very frustrating. And if I use app switcher or go back to home screen and switch back to Document 6, the interface will be unresponsive and I have to wait around 30 seconds or more, sometime it just crashes. Uninstall the app and reinstall it doesnt make anything better. I miss the old Document app which everything loads instantly. Document 6 is probably the slowest loading app Ive ever used.

*pradt about Documents: File Manager & Docs, v6.0.2