Razer controller with SL Inf fans - slow frame rate?

I have the Razer argb controller with 4 LianLi SL infinity fans (2 daisy chained on port 1, and 2 more on port 2, with the proper fan model selected). The controller is connected to its own internal usb header. The problem is I’m only getting 8fps in SignalPro on the controller/fans. I’m not getting the “limited frame rate” message, but how can I increase it to 20-30 fps? Shouldn’t that be possible with the razer controller?

I don’t have L-connect or any other conflicting software installed.