Issue:

Ripping is slow.

There are options which one can activate which influence the rip behaviour and speed. 

Solutions:

Check if one of the following settings is enabled as they could impact the rip times.

1. Check the default rendering intent, interpolation, screening and antialiasing settings:

Open the printer driver > colour gamut icon > misc tab

16 bit rendering (default is disabled)
Interpolation (default disabled)
Screening (default is stochastic)
Antialiasing (default is disabled)

V13.1 Screenshot:

Also try to rip at 1/2 resolution.

2. Check the flattening behaviour in Caldera:

The Caldera rip is optimised for a PDF workflow so that's the preferred file format.

If the document is a specific PDF with a lot of vectors then try to change the flattening behaviour for printing to global (or vice versa).

Special pull down menu > APPE Configuration.

V13.1 screenshot:

3. Try to flatten the file in the design software before importing it into Caldera:

If the file itself is very complex, the PDF itself can be flattened in the design software before importing it into Caldera. For example in Illustrator if you want to save a flattened file (a file that no longer contains layers) uncheck the "Create Acrobat Layers from Top-Level Layers" option in the save as PDF dialogue:

4. If the slow speed appears to be related to the printing/transmission part:

In case of a "file printer" first try to rip to a local folder instead of a network share as a slow network will also result in slow rip behaviour.

5. Clean the spooler and/or enable spooler management:

Try to remove old spooled files from the spooler. An excessive amount of old spooled files can lead to overall system slowdown.

It's also recommended to enable spooler management for each one of your printer drivers to prevent an excessive accumulation of old spooled files. Enabling "Max number of non-printable jobs" will automatically remove old spooled files on a first-in-first-out basis: HowTo Manage Spooler Print Queue

6. Reset the printer driver:

It could be that some unknown setting were set in the driver at some stage in the past causing slow ripping/printing. Try to reset the printer driver: How to: Reset printer driver to a factory default

7. Check if pure blacks are enabled:

In very rare cases a reduction in speed might be due to pure blacks being enabled instead of composite, causing an additional RGB channel to show up under the colours tab.

8. Check free disk space:

Make sure to have enough free disk space on your computer and on the printer controller.

9. Disable data compression:

Some printer drivers (not all of them) includes data compression to reduce data transfer. This process can increase a lot processing time. Disabling compression should speed up ripping time, but creates much bigger files and could have a negative impact on the transmission speed: