URGENTLY switch stogram database to sqlite

4K Stogram uses XML as database, this make it EXTREMELY SLOW when following just a few users, using a LOT of CPU and disk... Plus, after some time, it crashes and corrupts its database entirely, loosing everything.
So, my two cents is: switch 4K Stogram database to sqlite, or, at least, make it use one XML for each user, and not the same for all, only that would improve application performance and reliability dramatically.
I like 4K Stogram, but it is a pain in the ass to use it, giving what I described.
Thanks for your time and hope you accept my suggestion.