External FX Ping with RME Interfaces Still Not Fixed

Hi
I’m trying to set up external FX for the first time and getting major delay, testing with a drum loop everything sounds like double hits. Im moving the delay comp and doesnt seem to be getting any different. The measure effect loop button brings back 0 like stated above. Im using an RME 9632 with two extension boards. Any advise or other settings Im ignoring?