Quadplane Magnetic interference

Hello everyone

I was reviewing my past flight logs and I just noticed, very high magnetic interference. I have tried moving the motor and esc cables away from the flight controller as suggested in the documents. But there was only a slight difference. Any suggestions on what i should do?

Two paths that may have to be complementary.

Isolate power cables and/or compass cables
Calibrate compass with Magfit.

Thank you
I will update you on progress