Wahoo's ANT FE-C implementation is slower to respond then their native protocol. Hence some delay you have. Below is the recipe in pictures on how to select KICKR's native protocol:
Go to Settings/ANT+ Devices and click "Search" button. When you see list of devices that includes KICKR you can click "Stop search" button.
By default the software would select ANT FE-C version.
Click on small "V" button to the right of device ID and
then click on line that says KICKR:
Now you would see KICKR working under it's native protocol.
