There are so many issue in iqoo 12 . battery draining issue , camera degraded, Sound quality has decreased , slow charging ,VoNr is not working, Updates are not coming on time . please fix this issue .

When I use the phone, I feel like I am using a cheap phone. Camera quality has completely degraded , after android 15 update sound quality also decreased .

 For me most important thing  is battery backup and  camera 

I kindly request you to please fix this issue as soon as possible