Posted by a ceTe Software moderator
Hello,
The conversion speed depends on the DPI or image size setting provided the other settings (monochrome, CCIT4 compression) are constant. There are no specific optimal settings that would work for everyone. The DPI setting you want to use will depend on your requirements. For example, using a low DPI setting will speed up conversion provided a low resolution image is acceptable to you.
Thanks,
ceTe Software Support Team.