I hope I am not hjacking your thread but I think it would be interesting to find out which of the commonly used Addons are (performance wise) not the best and to help interpret the values from the addons you posted (performance_fu, optionhouse, ...)
I tested using Optionhouse, I reinstalled all my Addons using embedded libraries:
As you can see Baggins and Pitbull take up the most CPU time. I took this screenshot after about five minutes of idling in Shattrath. And I have no problems with Grid whatsoever.
My problem now is that I don't really know what these values mean. Are 2.7/2.8 reasonable values for CPU/sec for an inventory addon and unitframes? My first thought was that Baggins shouldn't take up any CPU time when doing nothing.
I then proceeded to delete all my addons and installed Baggins not embedding the libraries.
Here is a screenshot of Baggins installed this way and
this is a screenshot of PitBull.
For Baggins it is Ace2 which takes up most of the CPU time and for PitBull LibDogTag uses almost all of its CPU time. Again: I don't know if a value of 2.2 vor CPU/sec is normal or if I should start to look for another unit frame addon.
So if anyone could share some insight it would be greatly appreciated.