lately have been facing laggard in the performance. There is a delay of 3 to 5 sec at times to execute a process. Factory reset done, Sd card changed but the problem still persist.
I'm also using Note 4 I have also faced the same issue, but If you know how to Flash Software in your device using ODIN then your problem will definitely solve and you will also get better battery life..
Thanks for being with Samsung and for sharing your concern. Let me recommend some steps to further isolate and determine what you are experiencing. Please be aware that device speeds may vary based on multiple outside factors. It appears that there may be a third party app or other program that may be leading to what you are experiencing. Placing your device in safe mode disables all third party apps upon startup, to help determine if the use of a third party app is interfering with your device .restart your phone in safe mode. While your phone is powered off, press the power button to turn on the phone, once you see the Samsung logo appear press the volume down key and hold it until you have completely booted up. Also, the relevant department may serve you better/speedily, if you can provide logs/video by registering this feedback in Error Section (Samsung Members App -> Feedback -> Questions/Errors -> Create -> Error reports).
As per your suggestion, I switched to safe mode and kept it for 1 day. Observed that the delay to execute a process still persist. Even when receiving a call, the screen would blank out for 3 to 4 seconds and then show up. Observed that it has something to do with active memory or cache memory. Also when I have selected let's say viewing contact list and want to come out, it take 2 to 5 seconds at times to exit. The option is to switch to Note 5 or wait for Note 8 to launch.
