Epson Pro 5000 Reference Manual page 186

Even if your document requires the highest resolution and
extensive use of color, for example when printing a
camera-ready composite that includes color photographs, it
may still be possible to optimize the print speed by adjusting
other printing conditions. Keep in mind that changing some
conditions to increase the print speed may also lower print
quality.
The following table shows the factors that inversely affect print
speed and print quality (increasing one will decrease the other).
Print quality
Print speed
Printer software settings
Print Quality
Halftoning
High Speed
MicroWeave (Super)
Finest Detail
Data characteristics
Image size
Resolution
The table below shows the factors related to print speed only.
Printer software settings
Ink
Collate*
Reverse order*
Rotate 180 degrees*
8-32
Troubleshooting
Lower
Faster
Normal - 360 dpi
No halftoning
On
Off
Off
Small
Low
Print speed
Faster
Black
Off
Off
Off
Higher
Slower
SuperFine - 1440 dpi
Error Diffusion
Off
On
On
Large
High
Slower
Color
On
On
On