Iphone 12 pro max issues

HI Apple, I have been using Iphone 12 pro max around 5months already. From the beginning until now I face a lot of issues such as drop frame and lagging also the brightness drop when phone is getting hotter. Especially during gaming, and using other apps too.
  • This is my very first time using your product and I got so upset about it. I don't know it's Hardware or software performance. However I all this issues will be fix soon.

from IOS 14.0 till 14.4.2 nothing makes changed. Or Maybe this is your company intend.
Iphone 12 pro max issues
 
 
Q