Exchange Contacts and Mail.app
When ever I compose a new email with the email app, or come to think of it, share via email in a different app, the TO: FIELD will not except any input for about 5 seconds or so. I tap and tap on the TO: FIELD with no response. After about 5 sec, the field will finally allow me to add a contact.
Just for grins.... I disable exchange contact sync in my settings and switched to iCloud contacts. The TO: FIELD was immediately available for input when composing and email or share.
Is this the nature of exchange? or am I doing something wrong??