Premiere runs slower after 2014 and OSX updates

Question

Question: Has anyone experienced a decrease in performance after updating to the 2014 versions on their CC software? I recently updated this and my Mac's OS to Mavericks. I would like to narrow down the field in order to discover what is causing this problem.
System info:
Footage Info: 2 cameras - Panasonic GH3 and Nikon D7100, 1920x1080 29.97p, h.264 .mov files
Project: Series of 11 videos ranging from 3 - 4 minutes.
Includes:
Interviews on green screen (possible issue, I address this further down)1 - 3 interviews per video with 2 cameras for each interview. Cameras have separate comps = 2 dynamically linked comps per interview resulting in 2 - 6 comps with keyed footage
Standard broll, intro/outro/lower third screen comps linked with AE
1 audio track, premixed with interview audio and music
Problem: Since updating my version of OSX as well as my CC software I have had a significant decrease in performance when editing in Premiere Pro with dynamically linked AE comps. The performance issue ranges from the program monitor taking minutes to update after adjusting effects or scrubbing through the timeline (or just clicking on a new point to see the single frame previewed) all the way to my computer freezing or even PP restarting itself (never happened to me before). Also, export times have increased exponentially. Prior to these updates I was able to export a 4 minute video with multiple dynamically linked comps in around 30 minutes. After updating it is taking over 4 hours to export a 3 minute video with similar effects.
Possible causes/items for discussion:
The 2014 update added new effects to Keylight in AE (what I used to key the footage).Also this is the first project I have done using keyed footage through dynamically linked comps. Does the Keylight effect require significantly more power to operate?
I am working with projects that I had started prior to the 2014 update. Normally I would not have updated mid project, but with increased benefits to Keylight as well as adding the ability to edit dynamically linked lower third text directly from PP (huge time saver), I decided it was worth it.
Extra notes:
I also added another monitor to my system recently. Could this have something to do with it?
After this issue I plan on acquiring the proper transcoding software and updating my workflow to rule those out in the future. I will also consider alternatives to working with dynamically linked comps. However, at this point I am purely interested in feedback regarding similar situations or suggestions as to what I could try to address this issue. Thank you for your input.

Answer 1

I spent more time looking into this and think I may have found a solution to my problem! This has been an extremely frustrating week for me and the performance issue has affected delivery to the client, so I wanted to post what I discovered here in case anyone else is hunting for this answer.
I found another thread that addressed the issue of working with comps in PP (Re: After effects CC on maverick slow render because of PP CC Dynamic Link Footage). They refer to it as power nap in that thread but I think what he meant was "App Nap" which limits resources to certain apps when they are not in use. There is more information here (How to Disable App Nap in OS X Mavericks - TekRevue). Preventing app nap seems to have sped things up for me. I am going to try exporting now and see if that goes any faster.