Slow program changes in Ableton Live

In Ableton Live, when using VST3 instruments and especially in conjunction with a controller such as Push or Roto-Control, program changes may be slow if the plug-in has many parameters but does not have a default Device Configuration. Ableton is aware of this issue. The solution is to create a default Configuration, mapping 128 of the plug-in's parameters to Ableton's parameter list. You can do this manually, but as a shortcut:

1. Load the plug-in in Live.
2. The Device section at the bottom of the screen will show the X/Y pad. If necessary, click the triangle so that you can see the Configure button.
3. Press the Configure button, so that it turns green.
   If the plug-in UI is not already open, this will open it.
4. At the top of the multi/poly native window, select a new Performance.
   Any Performance will do; just use the right arrow to increment by one.
   This will automatically populate the Device Configuration with 128 parameters.
5. Right-click on the Device Title Bar to open the contextual menu, and select "Save as Default Configuration."

Selecting sounds should now be much faster.