I really don't understand Lite apps.

Your app is slow and way too big because you never cared about usability on slower devices or saving storage. Clearly you do not have a methodology to develop thoughtfully.

So, instead of starting to clean up your app and ensure more care in the future you... write a second app? Now you have 2 codebases to maintain, effectively doubling the maintenance costs. And if you still have no methodology the Lite app will eventually meet the same fate too.

Why?