Thanks for the reply and apologies for posting in the wrong forum.
I'm on o2, which I imagine would be international.
Yes my device is rooted.
I have about 2 pages worth of icons on my home screen.
and as for the delay, its not so much the delay from when I press the lock button to when the screen light ups. Its a delay in terms of when the custom lock screen appears.
I would of thought that when I installed the custom lock screen it would replace the stock one, but it appears as though the stock lock screen is still present and the custom screen just sits on top of it and occasionally when I press the lock button to wake the phone it would forget to load up and the stock screen will appear briefly before switching to the custom screen...