Your picture and video are not in a sprint position. They're in a warmup/soft-pedalling position. It'd be more helpful to see what your position is when it's go-time.

In that position your arms are going to be bent, and your head will come down towards the stem.

These guys are in the go-time position as track sprinters. As you can see if varies from true nose-to-stem, to a less aggressive position like the Kiwi. It all depends on where you can generate power.

I'm eyeball-guessing that you'll be a a bit cramped in length given your current setup, particularly since it's common to scoot forward on the saddle during go-time. But the "low" will come from you, not by lowering the bars.