I've set up an external compressor in Cubase for mixing but I'm getting a terrible time lag, despite pressing the delay compensation

VID_20180208_200324306.mp4 - Google Drive

The soundcard is a Behringer UMC 404HD and is setup as below.
Any help appreciated,

umcextfx.JPG - Google Drive

umcins.JPG - Google Drive

umcouts.JPG - Google Drive