Are you using an external soundcard?
I'm using a UAD Arrow Interface. It doesn't seem to be the the interface thats causing problems because when the Logic session is blank there is no latency.
Have you tried the empty dummy audio track?
I'm not sure what you mean by dummy audio track.
Are you aware that some (3rd party) plugins maybe taxing your system, even when not active (turned on)?
I've tried freezing tracks and turning them off completely but don't see any difference in latency. Is there another way to deal with these plugins that are taxing the system without having to delete them?
Speaking about your system, what are its specs?
MBPro 15" 2017, OS Sierra 10.12.5, 2.8 GHz Intel Core i7, 16 GB
Are you using other software(s)/apps/services concurrently while using Logic?
I'm not using any other apps/services while running Logic.
Thanks for the quick reply!