The app becomes incrementally less performant as more cards are added

[jleach]

Description of problem

As more credentials are added to the wallet it becomes more difficult for it to render the Credentials screen.

Expected behavior

The app should not show UI artifacts when displaying the credentials screen.

Steps to reproduce

Keep adding credentials. By the time you get to 30 you will notice estensive UI rendering artifacts. You will start to see issues well before this however.

Screenshots and/or log output

https://images.zenhubusercontent.com/310693687/6c0da6c6-ab91-4d7e-937e-a91804f943be/performancewithmanycards.mov

Environment

• [ ] Occurs on Android
• [x] Occurs on iOS

Build #:

Android Device Model:

iOS Device Model:

iPhone X

Workaround

None.

Severity

• [ ] High
• [x] Medium
• [ ] Low