Note 4 selfie\ camera questiom?

I just got the note 4 after switching from the iphone and I was wondering if anyone else has this problem. When I take a selfie with my front camera, the camera makes my forehead look longer and bigger when it's near the top of the screen. Also I noticed that on the bottom o the screen, the picture sort of gets stretched as well. Does anyone have this problem?

Also the quality on the pictures are so HD that it sometimes makes the picture look fuzzy. Is there a way to fix this?

Another question is how snapchat is slow on androids. I guess all androids have this problem though so no one really has a fix to it but if anyone knows anything please let me know!

What you're experiencing is wide-angle lens distortion and there's no way to fix it. You need to buy a real camera with a long enough lens (80-130mm equivalent to 35mm) otherwise you'll always get distorted images.