A few ideas here:
- Create a message queue and send all midi to the queue instead of sending directly. Then create a timer handler to process the message queue. Add some sort of priority if you want some messages to go first … and some way to clear out all or parts of the queue (e.g., unsent CC"s for the same target)
- Consider only sending midi when you’re done touching the knob, especially if the changes take time to run on the destination device.
How did you create those “labels” above the mixers?