Score view slow with large templates

[dterry]

This was an issue in PT8, but still a significant issue when scoring in ProTools 9:

In projects with a large number of midi tracks (my template has 250 or so), opening a single track in the score view is very slow. The midi (key) editor is fine, but moving to the score view takes 4-8 seconds everytime.

It seems ProTools is updating an overview of some sort for every midi track, everytime, even if there is only midi data on one midi track, and even if you are only editing one midi region.

I have also noticed that in PT9, selecting tracks to show/hide in the track list is very slow as well. I have memory locations to show/hide large track "groups" (not literal groups), and those recalls are fast, but clicking a single track to show/hide now also takes several seconds. It was fine in PT8LE. A different issue, but both make working with large track counts cumbersome at times.