Neo V very Slow after ICS Update.. :(

Question

Updated to ICS on my Neo V and facing many issues.
The major issue is that ph.is very slow and hangs a lot if 2-3 apps are running at the same time and at the time when ph. hangs not even the power button works, the only option is to reinsert the battery and reboot the ph.
1. Sometime touch controls in games like Angry Birds etc. stop working altogether and only a reboot or power off will fix it.  This is incredibly frustrating and other NeoV owners have complained about this.  It is very hard to reproduce.  On my device if I start the Draw Something app then hit Home and fire up Angry Birds then there is a 50/50 chance touch will not work in the latter.  But it also happened with the beta long before Draw Something came along.  Driver issue perhaps?  Either way, once it happens you're in trouble - killing off all apps doesn't help. The popular Temple Run game exhibits very weird touch behaviour for everyone with ICS. Perhaps it's related - sure would easy enough to reproduce! Install the game and then try to play it. Good luck! 
2. All-day events are not shown in the new Calendar widget which I think is fixed in Android 4.0.4 - shame we missed out on this release.
3. The Performance Assistant isn't very helpful.
4. FB status updates in the Contacts app don't work at all unless you have the official FB widget on your homescreen.  This is daft.  Timescape can fetch status updates OK so why not the Contacts app?  As a BIG fan of Timescape I don't want the FB widget on my homescreen.  This is an issue with GB that you should of fixed for this release Sony.
5. Sony Weather widget is the best looking weather widget I have seen (and I've tried many) but it still can't use your current location for the weather - come on Sony! This would of been a great mod to make.
Tried to repair the software and format SD Card but still the same issue.
Is there no other way than to roll back to GB???

Answer 1

sure it's not comfortable to change that selection every reboot specially if you use GSM only
but at least it has an solve till they fix it
but in overall process..SONY should forget about mobile market....they don't know how to offer firmware free of busg for the 3rd time !!!!!
the first ICS release was :
4.1.B.0.431 then 4.1.A.0.562 and then 4.1.B.0.587 !!!
they have solved lag problems in last one ..but added more bugs !!!
while they couldnt solve the LED problem from the 1st on till the 3rd !!!!!
SONY developers team are a group of stupids try to learn how to develop a software and then they test their bugs in our devices !!!!