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I upgraded from 3.2.1 to 4.2.1 and not only its not slower,its noticeably faster too.
 
No speed problems here. I'm not a huge fan of the way it just keeps apps piling up in the multitasking bar and you have to manually close them one by one, but that is a separate discussion I suppose.
 
You've hit the nail on the head here Jonny.

My problem is with content, which is backed up - that was imported by the camera kit. Its a load of photos from my wedding/honeymoon which i cant get back onto my iPad (just stuck in my backup)

Im wondering if i revert back to 3.2.2, then try restore from backup - i might get them back - fingers crossed.

what do you think?

I think that as long as those photos are on your machine you should be fine when you restore.
 
Loving the update. My iPad definitely performs BETTER now, and this is WITH multitasking. I'm really impressed on Apple's efforts to optimize the kernel. On the previous OS, it was pretty obvious that there were some not-so-minor memory management issues that needed to be addressed, and the limited (256 MB) RAM was always a baffling choice to me. I really worried that piling on more features in the new OS would only make it worse. But, apparently, Apple's engineers rolled up their sleeves and optimized the hell out of OS 4.x for both the iPad and the older iPhones.

Safari is faster and retains tabs better. Switching apps is nice and smooth. Email works better and I've noticed a few old glitches fixed (for example, single-page PDFs being treated as images).

Nice job Apple!

To the OP: Looks like you'd benefit from a wipe and fresh install.
 
I went through a day of usage and Safari managed to maintain 2 tabs over the 14 hour period. That I did not expect.

Unfortunately, that's my only praise of it, folder animations are laggy, when navigating back to the home screen the animation either stutters or just doesn't run and it can't take anymore than 6 apps at any one time without flushing.
 
Hmmm, certain things on 4.2.1 feel way faster, like page loads (maybe optimized wifi). So far I'm really enjoying the upgrade. No issues and seems faster to me.
 
It's laggy for me too, and I have an iPhone 4 so I am used to the home button behavior. Although, inside Safari things seem faster. It's just moving from one app to another, opening/closing apps, working with folders, &c. that seems slower. One time just closing the iPod app and then opening Safari caused the music to skip a couple times while it tried to load Safari. Kind of annoying.
 
I think that as long as those photos are on your machine you should be fine when you restore.

Managed to restore from back up on 4.2.1, just left it alone for half an hour and it worked.

However its very laggy - especially on photos. Some photos are from my 5D so quite big. On opening an album all the thumbnails are generated, which it never did in 3.2.2. Then i went to open a photo and it just hung - had to restart for it to work again.

I dont think apple have ironed out all the bugs, i really dont - otherwise people wouldn't be complaining of it being laggy and sluggish - which it is
 
I went through a day of usage and Safari managed to maintain 2 tabs over the 14 hour period. That I did not expect.

Unfortunately, that's my only praise of it, folder animations are laggy, when navigating back to the home screen the animation either stutters or just doesn't run and it can't take anymore than 6 apps at any one time without flushing.
I'm also finding the return to home screen animation sometimes doesn't seem to run or stutters a bit.

The ipad really should have had at least 512MB RAM
 
It seemed slugish at first, right after the update, but after a bit it settled down and has been working fine.

I have not noticed it faster with 3.2 but no lagging.
 
Thanks for this thread. My iPad on 4.2.1 is much slower than when on 3.2 but it's not had a hard reboot or a clean install. I will try both options before I complain further. I would be very pleased if it was snappy again after a clean install. It's just too slow to enjoy as is.
 
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