Ok, I have some footage shot at 60p AVCHD 2.0 from a Sony camera. I DO NOT WANT TO TRANSCODE THE FOOTAGE if I can help it. The footage plays fine in Quicktime X but stutters in FCP X. I'm running a 2009 MP 4X2.66ghz GTX570 with 24GB of RAM. I downloaded iStat and FCP X seems able to use a lot less of the CPU and almost none of the GPU to play back the footage (~22% CPU & ~2-3% GPU) whereas Quicktime X uses much more of the GPU (~10-15%) and plays back the footage super smooth. Why is FCP X not optimized?! Is there a way to fix this? For what I'm doing it just seems like a waste of time and space to transcode this media since clearly I have the computing power to handle it. Despite initial trepidation I've become a FCPX convert but this is very frustrating.