This is my elaboration on Round Trip Latency of Helix hardware used as audio interface based on research on closed fb group https://www.facebook.com/photo.php?fbid=10156514192780269&set=pcb.1077888115728194&type=3&theater&ifg=1
This topic is hardly relevant if you are monitoring direct. Helix hardware latency is 1,8ms from AD/DSP/DA (measured for one DSP Path), no matter what buffer or sampling frequency you pick.
If you use another interface for monitoring/recording it is no