GoPro 9 vs DJI Action4 comparison

Initial testing. I use DJI Lut for Action4 but nothing for gopro so ignore the colors. The stabilization is quite different. Gopro feels like a train that is not turning into the corners in time.. Sound is different as well.
Both mounted on chin mount on the helmet.
Settings:
Gopro 9 4k50, high bitrate, 5500k WB, Hypersmooth on, lens is linear + horizon balance. Flat color profile, medium sharpness.
Action 4 is 4k50 5300k WB, HorizonBalance, 10bit dlog + DJI lut, lens Standard (dewarp), sharpness -2, noise -1