A few things:
Your grip may be too wide. I think press grip is a very individual thing, so you may experiment with an even narrower grip.
You don't need to go quite that low.
You may be able to get a little more arch going (hard to tell from that angle).
It looks like you may be coming a little loose at the bottom, but it's hard to tell. You can probably tighten up a little more so you get a better bounce out of the bottom, but without having to go all the way down.