Her FR is also tragic lol. I think it probably just needs more nozzle filters. EQ also does a good job as its still a single DD.

Filter 1: ON PK Fc 20 Hz Gain 3 dB Q 1
Filter 2: ON PK Fc 180 Hz Gain -2 dB Q 1
Filter 3: ON PK Fc 650 Hz Gain 2 dB Q 0.8
Filter 4: ON PK Fc 1700 Hz Gain 1 dB Q 2
Filter 5: ON PK Fc 2600 Hz Gain -3 dB Q 2
Filter 6: ON PK Fc 4500 Hz Gain -3 dB Q 4
Filter 7: ON PK Fc 5500 Hz Gain -5 dB Q 2.5
Filter 8: ON PK Fc 8000 Hz Gain 3 dB Q 2
Filter 9: ON PK Fc 11000 Hz Gain -3 dB Q 2