Xperia SP lags while in settings

[PanosGR89]

Hello guys,
After the latest update the phone has become very fast and smooth, as it was with 4.1.2. However a bug still occurs (it started with the first 4.3 update) some times. When I go to settings and clear cache or ram management my phone starts lagging out of nowhere. The weird thing is that it doesn't freeze, it works and I can scroll and move around the menu or whatever. However, nothing actually works, for example I try to open viber but it doesn't show messages etc. I have to hard reset my phone as I can't even turn it off pressing the power button. It's getting really frustrating. I installed the latest software with clean install using SUS and performed factory resets before and after updating.

[Cory_Chasez]

Same as me...it says 'setting is not responding' do you want to close it???? It's really annoying because I always get it each time I enter the settings menu!!!

[PanosGR89]

It's very annoying and I can't always carry a pen when I am outside to perform hard reset nor wait for 10 minutes for it to restart by itself...

[Danial-mach1]

Try 

Setting>apps>all>setting clear cache and data then force stop and reboot your phone...see how it goes

[Cory_Chasez]

Same...no changes.

[PanosGR89]

After a day of full use, no changes as well. Same thing happens... Xperia SP is a beautiful phone with great hardware but Sony's software has made it a waste... I am extremely disappointed...

[PanosGR89]

Anyone?

[Danial-mach1]

then i suggest software repair via SUS

[Cory_Chasez]

thanks..but the problem still exist...even after repairing it with SUS for the 5th time..

[PanosGR89]

Not many replies on this post which makes me wonder. Not many people have this kind of problem?