Top 5 Questions:
1) Is making my Mac run harder for certain programs...LightRoom,Photoshop,Final Cut Pro & even Preview.
Is yours?
2) I see & feel no difference in performance...Why did I update?
3) Have you upgrade to OS X Mavericks?
4) Why did you upgrade?
5) Thanks? <<<Not really a question
1)
No, but I don't really use any of those programs, on occation Final cut, but not enough to say anything about performance loss (if there are any, its not very significant) I use Aperture alot, no diffrence. Runs like a dream, like always.
2)
Nor do I. Running the base config 2012 15" rMBP it runs like butter. I've never had any issues on either ML or Mavericks. I do see major gains in battery life though!
3)
Yes, and have been since DP1
4)
Tabs in finder, Multiple displays, Power saving, It was free...
5)
You're welcome