Thr biggest thing i see is you are inclining into the turn and that simply won't let you edge the skis more. You need to angulate, or break at the hip a lot, to the point where you try to keep your upper body vertical to the slope and that will allow the lower body to get a lot lower, edging the skis to those big angles. It will also help you hold an edge as you create those angles. The photo of Hirscher i just posted in the other thread tells you what i mean.
Do side crunches at home: lay on a side, have someone hold your legs and you lift your upper body up. The same crunch you must experience on the slopes at extreme angles
The other thing that allows your hips to get low inside the turn is called coiling, used to be separation, also known as counter: twist your upper body and hips a bit to the outside of teh turn - clearly visible in the Lindsey sequence above.
You also have to get lower on average
So here's a progression for you
Outside boot touch, inside hand points to the outside of the turn
Same as above, except touch both boots in transition
Drag both poles on snow - make sure they both are firmly pushed into the snow and there is spray of snow coming from their tips. They must be equally dragged regrdless of the turn - shold help you also keep upper body vertical in the turn
Remember, the more you crunch, the bigger the angles at the snow: physics
Do those until you are happy with the outcome, let your inner critic guide you, take more video and we'll take it from there...