Xperia XZ start hanging alot after nougat update

[Soh]

Hi everyone I purchased this smartphone about 2 month before, in beginning it was working flawlessly n I was satisfied from its performance. But since Obama nougat it's routine performance effected badly because it start heating n hanging during Skype calls browsing Facebook n playing mid processing games.
Even during Skype calls it take lot of time to open whatsapp or Facebook n during that process it becomes hot like pressure cooker. I used Galaxy Note 4 for 2 years n trust me I didn't face anything annoyed like this n don't forget Note 4 has low processing power as compared to this crop. I am really upset from this situation I also make hard reset but that two didn't solve my problem I have installed about 170 different apps including games.
Any solution please

[adamlee2014]

Tried turning off the mentioned features and still after rebooting and turning the display off for 10 seconds and turning back on then checking cpu z 2 cores are disabled!!!!!!!!!

[Lord_viridis]

No they are not.
Check a proper core monitor

[Lord_viridis]

https://play.google.com/store/apps/details?id=com.mediatek.multicoreobserver

[_alexdon_]

As far as I know, the cores can be idle, could be what stopped means.
You could download a different app to check activity.

See the posts here:

/t5/Xperia-X-Compact/Nougat-upgrade-lowered-cpuclock/m-p/1189788#M732

[sumoevo8]

Xz won't repair after being updated. I get an error msg 'Error code : UEStartNoMorePorts

[Lynnnuts]

I turned off battery care and smart cleaner. It seems like everything is faster. But still experience the stutter 😑

[Lord_viridis]

Placebo, battery care would not affect performance at all.

[KangYoonW]

I tried as mentioned turn off battery care and smart cleaner, it is still very lag. Try open ur photo album, click any photo taken then immediate double click for 100% zoom, it is terribly blur and only until about after 5-10second, it turn to clear. Only notice this happen after the recent updates.

[Lynnnuts]

I contact my local support.
Tried 2 times to install the software again. Unfortunately without succes.
Turned back to fabric installation. No luck either.
So my guess it's definitely a bug in android 7.0

Sony says that there isn't an update available.. Yet..

Sony offers to send the phone for a check up. So if they can't find something, it cost me 30-50 euro's resurch cost.
Dont no what to do.

[Sony2478]

After updating 7.0 in my sony z5 premium, the phone performance is totally changed.now the mobile having the following issues.
1.total performance is very low and slow
2.every application open time is taking more than 7 to 10 seconds.
3.camera is not open quickly.
4.contact and call details moving not smoothly. Hanging and slacking while rolling the page.
5.battary is fast drain.
6.some time calls are not allowed.
Totally I am very disappointed in this updating.
Kindly resolve those issues and improve the performance in 7.0.
Ashok.