Hi, Can anyone let me know the best settings to setup Premiere Pro sequences to work with 4k inspire files? I'm used to just using the DSLR presets. Am having some issues with rendering the 4k and lag when I watch. I took a 1080p 30fps HD preset that Premiere has in the main menu then changed the resolution to 3840 x 2160. Am getting pretty bad lag watching the files in real time even though the previews are set to 1/4. Most of my output will be 1080 anyways so maybe I should just shoot that way. I have a 2011 Macbook Pro. 2.3 GHz i7 Quad Core. 16gb Ram AMD Radeon HD 6750 1024mb graphics card Running OSX 10.9.5 The videos are playing from an external HD, maybe loading them onto my internal SSD will help, or is my machine just too slow?