http://forum.cockos.com/attachment.p...1&d=1484062160
1. Open attached project and change automation mode on ALL TRACKS (ctrl+A) to some different than Latch Preview witch is currently activated.
2. See how sloooooooow it changes across all the channels makeing Reaper unresponsive for that while.
3. Now, hide all those envelopes but leave them armed.
4. Change automation mode to ALL TRACKS to some different than current one.
5. See how fast it does exactly the same operation.
THE END
please optimize this :-)
P.S. I can't make any licecap because I can't fit attachment filesize limit for that issue to be captured.