like some others I had lag after the update. More so with graphics... it was a little better without live wallpaper but not much. Anyway I'm at Verizon yesterday to get a new case. I'm joking with the guy behind the counter asking when update #2 is coming out to hopefully fix the lag problem. He asked to see my phone and was messing with some things.... he asked if I had ever rooted the phone and overclocked, or had I downloaded the upgrade rather than waited for the OTA. I said no, although I did both ...(was afraid of warranty issues)
Anyway he said they have run across some that have done so and wrecked I think he said the processor, others with the manual update did not get something(i forgot how he phrased it) that the OTA supplies to the phone. I asked what he could do for my phone because he agreed it was no where near as he stated "fluid movement" that the droid should have - They gave me a new phone The new phone had 2.01 and ran better with all my programs and faster than 2.1 on the old phone.
This morning I got the OTA.. have to say its very cool now... reminded me of the 1st day I tried droid mod. everything is faster and more "fluid now", I have no lag with all my programs.... running news widget, beautiful home widget and live wallpaper. Downloaded Helix and seven screens again!
The only problem I had was google earth was not showing up in the market, so i did a factory reset and all is well now