Hi All,
Just wanted to add that I too am experience sluggishness. Specifically, after clicking on a photo to preview it, and then pressing the arrow keys to advance from photo to photo, the speed that I can advance from photo to photo is very slow.
To try and quantify the difference, in PM5 it takes me 2.5 seconds to traverse through 10 photos; on PM6 6.3 seconds. Thus, PM5 is 2.5 times faster. I observe the sluggishness with both RAW and JPEG photos. I even tried small (2000x1333 pixels, 1050K size) JPGs, and PM6 is sluggish advancing through those photos. So it's not just about the file size. FWIW, both types of files were Canon files processed with Lightroom Classic 8.2 (from .CR2 to JPG), but given that RAW files are affected, I don't think it has anything to do with post-processing.
I appreciate all the hard work Camera Bits has put into PM6; however, at the moment I'm having to go back to PM5 to work efficiently.
My specs:
OS: 10.14.4 (18E226)
iMac (Retina 5K, 27-inch, Late 2015)
4 GHz Intel Core i7; 24 GB 1867 MHz DDR3
Graphics: AMD Radeon R9 M395X 4 GB
Photo Mechanic Version 6.0, build 2725 (1d89a41)