SweeterHome

Is your phone, last build runs smoothly on my HTC Hero.

Well, my phone is better than your phone.
You phone is the "little brother" to mine.

HTC Hero > HTC Legend...

I appear to be having a lag on 822, as well, clicking on my different buttons to launch screens. Otherwise rock solid.

This build is running dog-ass-slow on my Moto Droid as well
2.2 BBv0.4 1.1LV Chevy1 Kernel

It runs fine on my Milestone.

ALL launchers (not just Sweeterhome) are having redraw and lag issues. It has to do with new memory management in Froyo, and also tweaks the rom developers are doing to speed up performaance (which run counter to those of us pushing the ram limits with our home themes).

This has helped my BB0.4 run better. Still have gotten some redraws running flash, but that may be a flash issue.

Known BB0.4 tweaks for better performance:
1) edit build.prop in /system....increase dalvik.vm.heapsize=30m to 36m (I increased mine to 40m)
2) edit install-recovery.sh in /system/etc....delete the last two numbers (12800,14080)in echo"2048,3072,6144,10240,12800,14080"> /sys/module/lowmemorykiller/....This is the command line that keeps 50mb free....Deleting the last two numbers is telling it to keep 37 megs free or something like that - you're making the memory management a little less aggressive.
3) increase the bitmap limit in Sweeterhome preferences (mine is set at 50,000,000)

Additional unproven tweaks to play with:
4) turn-off window animations and transition animations in Spare Parts (no clue if this helps SH, other launchers think it may help improve lag).
5) edit build.prop in /system....increase ro.media.dec.jpeg.memcap=20000000 to 24000000 (completely my own idea - remember reading android had a jpeg limit that can cause issues with two many widgets and images, which are jpegs that obviously take up memory)