[bug] - Final form arrays poor performance

[chrismclarke]

Describe the bug
You can see when adding/removing steps how janky the animation is. This is due to heavy re-renders and checking by final form

To Reproduce
Add remove how-to step or add a console log during the render method to count

Expected behavior
Minimal renders

Additional context
Common issue, discussion and potential solutions:
final-form/react-final-form-arrays#22
final-form/react-final-form#336
final-form/react-final-form#190
https://codesandbox.io/s/32r824vxy1

[chrismclarke]

As a quick update, 3 months later and issues still open but some people say that latest versions should add some improvement. We are stuck on v3 so it would be worth somebody testing whether upgrade to v6 can be done without breaking too much!

See all release notes along with potential breaking changes here: https://github.com/final-form/react-final-form/releases