iOS6: MFMailComposeViewController slow to load and flashes black screen; MailCompositionS begins hogging memory

Question

On iOS 6, after sending a few email messages (by using MFMailComposeViewController), the email screens become very slow to open- at first opening with none of the fields pop

Answer 1

there's another possible solution:

Remove custom fonts from the appearance methods, if you have any

https://stackoverflow.com/a/19910337/104170