The performance switch is actually not a physical switch on the outside of H9..the only way to activate it is the app..midi..or analog switch..I'm using a MXR tap pedal.
I found this on the Eventide website that explains it perfectly....
If, via cc, I send 127 then 0 right away...it flips to slow. Then back to fast if I do the same ... 127 then 0. This I call a TAP of a midi cc button in gate mode..not toggle. On/off. Because in gate mode it sends 127 when I press, and 0 when I release.
If I HOLD that same switch, sending just 127....it goes to BRAKE mode..just while I am holding it. When I release...it sends 0, and brake mode is released.
This is normal function...identical to my analog aux switch mapped to the performance switch.
Also reminiscent of traditional Leslie controls on a Hammond organ.
The key is sending the right cc signals.
Your need for a double tap is because your switch is in TOGGLE mode, instead of an on/off gate mode..which is a limitation of some controllers...namely the Helix, as I understand.
...still love the helix after 1.5 years...H9 is just a great addition. Thanks you for this forum!