What’s the resistance of that motor? I see 80kV which should mean large resistance, but it looks quite small in images… you can try to set lower motor.voltage, it should be at most 1/2 power supply, but in this case, maybe even lower, try 2-3 volts?
Anyway, in open loop it is unable to really do anything efficiently, so you will have large current while the motor is trying to align the rotor poles with the stator. If you can do closed loop with some kind of sensor, you’ll get better performance and less startup current.
Edit: this came up recently and may be related, especially as you are also using F4 family with 6PWM https://community.simplefoc.com/t/6-pwm-driver-initialisation-causes-shoot-through/5046/13