I love the use of power to turn in the top half of the run and the switch to flowing through the last couple turns. There are good reasons for many to ask how can you get any better than this and why would you want to. But when you get to this level, the snow is always whiter on the back side of the mogul (aka grass greener on the other side of the fence). You know there's more performance to be had but you feel a wall stopping you.
When you watch the pro mogul guys, they never bend at the hips. This happens when you need to slow down. You get your feet out in front of you, plant them on a mogul face, set the edges and absorb absorb absorb. When your ankles and knees run out of absorbing power, the lower body locks and the upper body continues forward, the hips bend and lever some more slowing power onto the lower body. The pros solve this problem by going faster and not needing to slow down as much. Mere mortals solve the problem by mixing and matching different speed control mechanisms. One additional mechanism is snow contact. The traditional advice about opening your ankle more is really good for re-establishing ski tip to snow contact after passing over a mogul and getting some more contact with the soft snow on the back side of the mogul. This slows you down because the snow is softer and because you are creating more turn shape to your turns. That's one tactic you could employ more to need to bend at the hip less.
Another tactic I'd recommend for you is "grinding". I see you pivoting your skis a lot in the upper half. This is certainly a valid tactic in the bumps. Lots of people ski this way. With pivoting, if you need more speed control, all you need to do is pivot faster (i.e. get extra turns in). It's doable, but a lot of work in wet snow and depending on your knee in jury could be begging for trouble. So I'm recommending "grinding". When you carve on a groomer, you lay the ski on edge and let the ski do all the work to turn you. When you lay the ski on edge in the bumps, most of the time a good bit of the ski is off the snow and you don't get a lot of turn out of the sidecut. But what you can get is a little micro skidding through all parts of the turn. It's like driving with the parking brake set at only one click. You can go, but you can also really feel the drag. So use your edges more! Don't just use them to set the brakes at the end of the turn. Think of them as helping you turn the skis, but what they'll really be doing is skidding just a tiny bit and working like a parking brake through all parts of the turn instead of the stomp on the foot brake at just the end of it.
But this grinding tactic is not going to work well for you until we get the ski edges engaged earlier in the turn. In this clip we can see your shoulders turned to the inside of the new turn, but not your hips. When you turn, you turn the skis and then compress your body to set the edge with the skis in the new direction. Can you see the vertical sinking? For the line you're taking here you want a bit more foot separation and a bit more tip lead to let the hips point more into the new turn before it starts. This will let your body flow across the skis earlier in the turn, drawing the skis onto the new edges earlier and getting more shape to the upper half of your turns. You can feel this the most when you are in a zipper line with your upper body going straight down the run and your legs zipping back and forth from side to side underneath you. As the turns get wider and your upper body has some lateral movement across the width of the trail, the trick is to not let your hips get lined up with the skis as the skis turn to the side of the run. Funny, we should be doing the same thing for high performance turns on groomed runs.
You don't need to do this. You could just learn how to let your knees bounce all the way up to shoulder height instead of bending at the hips. You want that tip instead? The three tips above are listed from easiest to do to hardest to do and least effective to most effective. You can use each individually, but they'll work best when you can blend them together as needed/desired. Enjoy!