Minimum SPI Frequency?

[Arhowk]

Hello, I'm trying to implement an absolute encoder on the SPI communication channel and it asks for a clock frequency of 5kHz. Whenever I try to get frequencies this low on the RIO, the lowest I can ever get is approx 700kHz (per a 10mHz logic analyzer).

does anyone have some insight on this? There should be no minimum clock frequency for the SPI module...

EDIT: Insight- Don't use the SPI port on the RIO.