Using Raspbmc and have tested 12.2 stable and 13.0alpha.
Same problem on both so I am quite certain something has changed in latest Amber as other skins still works as they should.
I can test this on my ATV2 as well and report back.
@
lysin
I usually have ≈15-20%CPU on home screen, but I have even lower on my OpenELEC version, ≈10-15% (have an extra SD with OpenELEC for testing purposes).
I test OpenELEC every now and then and I have same low CPU% on both rbej´s custom builds and standard releases.
If you have something moving (scrolling text etc) or a lot of text on the screen CPU spikes directly (calm screen = nothing moving and very little text).
Maybe you have some addons that causes that high CPU usage, or other background processes.
Low CPU in GUI means WAY snappier, Amber usually is has the lowest numbers I have tested and therefor the fastest skin (confluence is pretty much the same though).
Difference between Confluence and Amber can be seen in pictures below (before it was pretty much no difference):
https://www.dropbox.com/s/k0nhgsj7nq0pk96/amber.jpg
https://www.dropbox.com/s/25rzg7rquivwnb...luence.jpg