First, a little background about me. I purchased the S4 the day it was released and used that for many, many gigs until the day the S4 mk2 was released after which I subsequently used that unit until the day the S8 was released. So, let's just say I'm not what you might call "new" to this whole Traktor thing. I use the S8 (and the S4s before it) on a 2012 2.6 Ghz Core i7 Retina MacBook Pro with 16 Gigs of RAM on Mac OS X 10.10 and I've had practically flawless performance (at least so far as Traktor was concerned, my mixing might be another story ) with both versions of the S4. I've always cranked the latency down as low as it goes and have practically never had an issue. Since getting the S8, I've not played out with it yet, but in playing around with it, I've noticed EXTREMELY heavy processor loads whilst doing very run of the mill things (e.g. playing two tracks with an effect on one track). The processor load is so extreme that I've even had audio breakups on occasion (something that I've almost come to believe was impossible with the S4). Just to clarify, the processor load isn't running high all of the time, but it spikes to the top of the meter intermittently while playing. I've tried adjusting the latency a bit (to no real avail), but like I said before, I've never had issues with this previously so it's definitely concerning. Has any one else experienced this?