There’s no such Cube Orange limitation, but there’s plenty of Arducopter parameters that affect that sort of thing.
The primary issue is you’ve got MOT_SPIN_MAX 0.6 set, which is non-standard. Change it to 0.95
Also you can set a bunch of “initial parameters” using the MissionPlanner plug in by pressing Alt A on the keyboard, or by following this spreadsheet
There’s some other issues, you’re trying to use DSHOT, which is the way to go, but you need to use the AUX outputs.
Set these params first:
then reboot and apply these:
Reboot again and check all those params have stayed set as planned.
Move your ESC connections to the AUX outputs instead of the Main outputs.
Also set these in preparation for Harmonic Notch filtering
On your BLHELI ESCs make sure you’ve got Low RPM Power Protect disabled.
Ideally you should have the BLHELI telem wire connected to a serial port (typically Telem2 or Telem4)
Once you get airborn OK you can set up Harmonic Notch filtering, it makes a real difference to Autotune.
Let us know if you need help with it. There’s some options depending on if you have the ESC telem hooked up or not.