Pro Tools 12 Support needed for 4k and 5k displays. When making edits, dragging, or scrolling in the edit window the display is choppy. This is due to the extra time the graphics card needs to render the edit.
This might also be a message to pass onto all 3rd party plugin developers as well as the Avid plugin developers.
Some plugins cause PT 12.5.0 Meters to lag while you move the parameters (or even the mouse when the plugin is open).
My setup: 12 processor 3.46Ghz Mac Pro Mid 2010, OSX latest El Capitan, 128GB RAM, PT 12.5.0 HDX.