iPhone is blurry during FaceTime. How do t fix this?

Hello and welcome to Apple Support Communities, Retiring,

If we understand your post correctly, the image is blurry when you're on a FaceTime call on your iPhone. We’d like to help.

Your internet connection can affect both the video and audio quality of your FaceTime calls:

Use a fast connection to avoid sound quality issues with FaceTime

If your cellular connection or Wi-Fi network runs slowly, or other users stream audio or video on the same Wi-Fi network, you might have these issues:

Connection alerts or unable to connect

Choppy video calls

Black screen

Dropped calls

Make sure that both you and the person that you call use a fast Wi-Fi or cellular connection. If you use Wi-Fi, FaceTime requires a broadband connection.

From:

If you can't make or receive a FaceTime call on your iPhone or iPad

Let us know if that resolves this issue for you.

Thanks for using the Apple Support Communities.