From the look of this picture, your frontal area is pretty large. Getting lower at the front can be one way of mitigating that, but might lead to discomfort and also your head pop out even higher. Also, I don‘t know how long the TTs are you are doing. Full IM? I have never ridden a TT bike further than 100k at a time.
I‘d recommend you try out a lower position and work on being able to hold that. You position doesn’t look optimal from an aerodynamics stand point. A position however has to work as a whole. Some are more rounded and upright, some are flatter and they can all work:
Dennis having a more upright position, probably higher A, but pretty good Cd.
Evenepoel being just mega flat, but not quite as powerful.