If you go to "settings", there should be a new option, the first line "Droid Concepts Settings" If you have that, it is probably running right. While you are there, tap "CPU settings --> Max CPU Freq.--> 800. Run it at 800 for a day or three, and you should notice the phone is a bit snappier... (although I flashed Pete's 1.0lv v.2 kernel instead).
I have never run the OTA 2.2, so I don't know what all Should be different. Also, I run Launcher Pro which changed the feel even more.