MC6 to control H9, ML5, and Laney IRT!

I am using an MC6 to control quite a bit of gear and some presets are giving me more delay than others causing a noticeable gap. My setup is:

MC6 out > Eventide H9 in > H9 out > ML5 in > ML5 out > Voodoo Lab Control Switch which manages the channels on my Laney IRT.

Switch 1 and 2 have no audible delays, but when I click 3 I hear the lag. I know it is a lot to run, but the first 2 don’t have the issue. Am I doing something to cause the delay?