Xperia extremely slow....

[Rayday]

My Xperia sp was stupendous before I updated to 4.3, it was fast and smooth and never froze. Now, it just keeps freezing at everything I do! It takes ages opening every app andI have to keep emergency shutting down!
Here's what I have tried:
Getting a 32gb sd card and moving as much data as possible to it (I couldn't move the apps)
Disabling Google Chrome
Removing the cache of my apps
Is there anything else that could possibly help? And why is it so slow on 4.3?

[Ridgeback]

After another long chat with my phone supplier (Orange in the UK), I'm delighted to say that I'm receiving a new SP tomorrow - preloaded with the OLD operating system. This is a known fault with the new release of OS - it takes up too much memory for SPs. How Sony could release an OS for phones that would cause this kind of issue, I do not know!

[Ridgeback]

Thanks for that, GreekXperiaSp - as you can see, I've just had a long talk with my supplier, and they're doing all they can to fix by replacing the handset. I cannot risk the warranty because voiding it would muck up my chances of getting the phone replaced. Crazy situation, though.

[GreekXperiaSp]

Glad to hear that..hope you get a proper xperia Sp..

[Rajesh999]

i am also faceing same problem. after update my drives extremely slow.... please help me.........

[Ideomotor]

Ridgeback... I'm having exactly the same problem and I am on Orange as well... Can you please give me their contact? I have no idea how its done. I went to the shop and they wanted 60 pounds for a loan old samsung phone.

Problem is... I tried to reflash it, I don't know if I voided the warranty or not, I put it all like before with PC Companion.

[FTP]

I use a cleaner free from Playstore its the one with the blue brush 

Yesas someone said its the RAM or rather the lack of it

[Jakti]

Hi Everyone!

I have a similar problem. I have Android 4.3 (Ver.: 12.1.A.1.207) installed. When it was fresh updated, it worked nice. I avoid to install too much apps so I cared about its internal memory. Despite of my care it slowed down. Sometime i cant pick up my phone, because the pick up slider has a huge lag or I cant stop my alarm because it hes a huge lag. And the most annoying thing when I cant decrease the volume without lagging.

Could you help me to solve the described problem? I would be very grateful.