Extremely slow phone

[RAM_1994]

I have xperia arc s, and it's extremely slow. For example, I want to opet Whatsapp, and it opens 10 seconds after clicking on the icon. Same slowness is everywhere else. It's also extremely laggy, whether I do something simple or complex. Like it's using 10% of it's power. I did a factory reset, still slow. Then I've rooted it and flashed custom rom, still nothing, slowness is also here.
Is there any way to fix this? What could be the problem?

Thank you

 

[irefutabil]

what rom you have? ICS?
try a KK rom

Sent from my Xperia Arc S using XDA Free mobile app

 

[bejunk]

I have xperia arc s, and it's extremely slow. For example, I want to opet Whatsapp, and it opens 10 seconds after clicking on the icon. Same slowness is everywhere else. It's also extremely laggy, whether I do something simple or complex. Like it's using 10% of it's power. I did a factory reset, still slow. Then I've rooted it and flashed custom rom, still nothing, slowness is also here.
Is there any way to fix this? What could be the problem?

Thank you

use legacy xperia rom as suggested above at best kitkat

 

[RAM_1994]

That's my secondary phone so it's just rooted, I cannot flash that ROM. But even with stock ROM, this phone should be a lot faster, my old Xperia X8 was 3 time faster!
Is it possible that the hardware is somehow damaged?

 

[eddrowe]

That's my secondary phone so it's just rooted, I cannot flash that ROM. But even with stock ROM, this phone should be a lot faster, my old Xperia X8 was 3 time faster!
Is it possible that the hardware is somehow damaged?

I had x8 too n was faster but was also on gb. Ics is slow n laggy. I run UHD5 on mine n it lags after a while. Unless u unlock bootloader n flash new kernel u might just have go bk to gb or deal with it.

Sent from my LT15i using xda app-developers app

 

[Christiangodi]

I had x8 too n was faster but was also on gb. Ics is slow n laggy. I run UHD5 on mine n it lags after a while. Unless u unlock bootloader n flash new kernel u might just have go bk to gb or deal with it.

Sent from my LT15i using xda app-developers app

Try kk rom, works great!

 

[RAM_1994]

I understand that kitkat will works faster, but how can be possible that xperia x8 with eclair 2.1 works better than xperia arc s??

 

[popthosegaskets]

I understand that kitkat will works faster, but how can be possible that xperia x8 with eclair 2.1 works better than xperia arc s??

Have you ever thought that older android versions require less RAM and resources to work as compared to their newer counterparts? Even if KitKat has been optimized to work on low RAM devices, it still has many functions that require more RAM and resources. It's that simple.

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