BUG - sev-3 - Android - ~10 seconds of non-responsiveness at app startup (sometimes)

[TKDickson]

What happened?

If I force-quit the app (after having logged in), then open it again, there's a good ~10 seconds where an empty black screen displays, rather than the sync screen (or any other intentional app screen).

I'm not sure what's going on during this time (us? platform/device stuff? calling firebase? etc) so I'm guessing there's a non-zero chance that delays could be even longer for veterans in production. We do have user reports of a completely non-responsive app, maybe this is what they're talking about. Example:

I downloaded this app and it will not load up so that I can even log into it. I deleted it within 15 minutes due to non-operation

Specs:

• Device:
• OS:
• User Account:
• Accessibility State:

Steps to Reproduce

Desired behavior

Acceptance Criteria

Bug Severity - BE SURE TO ADD THE SEVERITY LABEL

See [Bug Tracking](https://department-of-veterans-affairs.github.io/va-mobile-app/docs/QA#issue-severity) for details on severity levels

• Impact: High Low
• Frequency: High Low

• 3 - Low
• 2 - High
• 1 - Critical

Linked to Story

Screen shot(s) and additional information

-Binny Note: Confirm how early in this video our code actually begins executing.

Full JSON response for services related to issue (expand/collapse)

Ticket Checklist

• [ ] Steps to reproduce are defined
• [ ] Desired behavior is added
• [ ] Labels added (front-end, back-end, global, Health, relevant feature, accessibility, etc)
• [ ] Estimate of 1 added (for front-end tickets)
• [ ] Added either to the relevant feature epic (if found during new feature implementation), or the relevant team's bug epic (Global, Health & Benefits, API, QART)

[dumathane]

Confirm how early in this video our code actually begins executing.