I'm experiencing low playback performance on fcpx 10.1.2 on my new mac pro: I'm on a 8-core, 64GB, d700 (project and files are all on the main drive. Im on the latest maverick update. Im working on prores 1080p and adding some effects to a clip and my playback really drops, so far I have been testing a few plugins such as hawaki "auto-split" or coremelts "track & slice X". I instantly need to render the effects to see the results, the funny thing is the same plugins runs smoothly on my macbook retina.. It made me wonder maybe the 3rd party plugin isn't optimised for the new mac pro but then I tried hawaki auto-split on Premiere cc 2014 and I was getting way better results than fcpx.. This may seem like a trival thing but paying this much money for a product and having a bigger project with different plugins this gets really annoying.. Anyone else experiencing any issues?