First off, you look pretty good. I can see how the cue moving up above center is going to drive you nuts and lose you some power. If you look at the angle of your cue at the back of the back stroke, it looks fantastic and that's very close to the angle you would actually like to hit the cue ball at, maybe a hair less. That's going to be difficult to do but totally worth you trying.
I would try 3 things;
#1 and hate saying it but it may help, get 2-3 inches closer ONLY because that'll make it easier to keep the cue slightly elevated at impact.
#2 Try a weird bridge that is higher. I actually tuck my middle finger under my forefinger. My forefinger is not not on top of middle finger but is actually slightly in front of it. Had a funny conversation with Earl about this in US Open parking lot, funny because we were both doing the same thing but different and both because of Shane. Earl was using a sandbag in an effort to make his bridge higher and I had been practicing putting a 3/4 inch book under my bridge hand. Earl says "Shane, he's got those friggin big rubber pencil fingers!" Anyways, try to make bridge a little higher so you can come straight down thru the cue ball striking it a half tip high but following trhu the center of it.
#3 Try to get a little separation between your right should and your back hand by standing up slightly and slowly as you start you backswing. You can see how that works simply by getting into your break stance, freeze your back hand and don't move it as you simple stand a little taller you'll see distance start to get created and your arm will extend a little more, giving you a little more stroke or whip.
#4 I know I said 3 but more comes to mind as I start typing this. Keep the backhand soft for as long as possible, loose muscles move faster. I don't think you'll have a problem with that as your back hand does look pretty soft already. I think about bringing the backhand to the front hand as fast as possible and that works for me.
You're not that far off, I think a couple inches in the right direction and you'll be poppin whitey back to a stop. Good luck.