FWIW-- I resolved the issues above, and I wanted to update this thread.
The issue ended up being too many blocks on the screen. I think there were around 450 blocks originally.
So what I did was split the page into 2 pages in the app.
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Loading Screen - Grabs the data from the database and manipulates it so everything is readable by the app. The UI just shows “loading…”. Once this is complete, it moves to the Display Screen.
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Display Screen - Displays the data from the Loading screen to the user.
As other threads have noted, the performance issues tend to start around 200-300 blocks. But splitting the business logic between screens seems to be a viable solution.