For the past few weeks Photo Mechanic has been running quite slow when I try to move/copy files from one place to another. My mac freezes up momentarily and indicates "PM Navigation Agent" as a non-responsive application.
The ingest dialog is also painfully slow... takes me several minutes to start an ingest or even open the IPTC stationary window.
I haven't done any major updates since this issue has started. Plenty of storage on my mac, although the issue doesn't seem to to be as bad when I'm working with files on an external drive.
Mac / High Sierra / 10.13.4