I am using three older Canon Vixia HF R800 cameras feeding via wireless Tx/Rx (Hollyland Mars 300 PRO) to a BlackMagic Design ATEM Mini switcher. The Tx/Rx and the switcher can all handle 1080p video, but it doesn't appear that the video is coming in as 1080p.

I'm not actually recording on the Vixias, only outputting via the HDMI port. Do setting the recording settings at all affect the output of the video? I've had it connected to my system, and gone into the menu Other Settings > Display Settings (middle tab) > HDMI Status and it confirms it's HDMI 1920x1080p.

Anyone have any idea why my video's not looking crisp?