i think it will get better once the electronics settle down. the battery is only 50% full even after 175 miles.
With a hybrid, the battery will rarely show full charge, generally only after some downhill running in EV mode, especially when using regen to control vehicle speed.
Battery charge is always used to assist the gas engine in moving the car, so you'll see battery charge vary widely in normal driving.
The goal isn't to achieve full battery charge but to use battery charge as available to contribute to the motive power needed to drive the car.