Can I change size of contact photo for incoming call notification?

[AC Question]

Just upgraded from S4 to S6. On S4, for an incoming call notification, the notification itself was larger and the contact photo was large enough to see. On the S6, when there is an incoming call, the notification is small and the photo fits into a circle about the size of a dime. Is there a setting to change this? Without my glasses, I can no longer tell who is calling. Thank you.

 

[Cola Osborne]

I need help with this feature too.. very annoying... does anyone have the answer I feel I have downgraded rather than up!!!