main menu animation not smooth,and touchscreen reponse slow

eclair animation not smooth in my board,especially full screen
animation. When I touch the screen in main menu button after eclair
startup, menu will reponse the touch event 0.5s later, and the
animation of the menu is not smooth. but in applications, there will
be no delay for the touch event.but the animation still not smooth.I
don't know what cause the problem.touchscreen or framebuffer?
By the way,I can not check the "Show cpu usage" button in dev tools
apk.Is there another way to check the cpu usage?
I've got these message

I/gralloc ( 760): id =
omapfb
I/gralloc ( 760): xres = 800
px
I/gralloc ( 760): yres = 480
px
I/gralloc ( 760): xres_virtual = 800
px
I/gralloc ( 760): yres_virtual = 960
px
I/gralloc ( 760): bpp =
16
I/gralloc ( 760): r =
11:5
I/gralloc ( 760): g =
5:6
I/gralloc ( 760): b =
0:5
I/gralloc ( 760): width = 127 mm (160.000000
dpi)
I/gralloc ( 760): height = 76 mm (160.421051
dpi)
I/gralloc ( 760): refresh rate = 65.12
Hz
E/FramebufferNativeWindow( 760): xDpi
480
E/FramebufferNativeWindow( 760): yDpi 75366403