We have to remember that Diana is half human and half God. .
Correction, she is half Amazon and half god. Unfortunately we still don’t know what the Amazons are capable of, and how their genes differ from standard humans, if they differ at all. Additional powers could be derived from the mixing of her Amazon genes with Zeus, or with blessings from someone like Gaea. Also let’s not forget that before flashpoint Cassie was the spawn of Zeus and she possessed flight and super speed. Diana could have plenty of untapped potential.