Keep getting a 'Data Loading'

Antlion

I'm using datatables with gravity view. On the demo site, everything is peachy. I recently installed wp and gravity form / view / datatables on a fresh image of ubuntu / nginx. When I use the search box or the column headers I get a 'Data Loading' for a quarter of a second. It's not a huge issue, but I would like to know how to get rid of that, and what's causing it since it doesn't do this in the demo.

Is it a matter of speed / configuration server-side? Is it just a default setting?

here's the example:
http://crowfail.com/view-form/