numbers

One month ago appeared two red numbers in the top left corner of the camera app saying -3, +3 when I updated my phone it changed to -6, +6 and I think that the photos quality is lesser than at the begining. What is that? How can I change it? I can't remove it with any of the camera settings...

Mi5 64gb atm 6.4.4 miui8 ive had this problem since i was on miui 7 stable. been using xiaomi.eu rom since the first one for mi5. when someone calls me or i call someone, the name of the contact does not show in the call screen. only number appears. call log is fine, messaging is fine. ive...