• Disk Usage—For example, if the Disk meter in the System Usage window reads 50% when you are playing back the project, offline export will max out at two times the speed of real-time simply because it is physically impossible to read the disk data from the drive fast enough. If you can increase the Disk Playback Cache Size (Setup > Playback Engine) to cache all audio on the timeline, this should not be an issue (Pro Tools HD only).

• If there is an unbalanced use of your computer’s core processors due to Native plug-in usage, you can check to see if the individual core CPU meters are unbalanced in the CPU section of the System Usage window. Removing or making Native plug-ins inactive on Auxiliary Input and Master Fader tracks may help alleviate this problem.