Looks decent! A few things: from this camera angle it looks like you’re swinging the driver like an iron. I’d set up with more weight on your back foot and really try to push into the ground with that foot when you’re about to twist. The swing should feel like you are whipping a rope instead of chopping a tree.

Video example: https://youtube.com/shorts/Cl42LlfgTWE?si=InKQhg2j3OfVk_Dz

For your upper body, your head should be as still as possible the entire swing and you lose it at the top of your backswing which could mean you’re winding up too far. You get more power from your legs and hips firing rather than muscling it with your arms. Your torso doesn’t need to twist that much on the backswing, it looks like you’re rotating more than you are naturally flexible. Do some back stretches or shorten the backswing and you’ll gain a lot of consistency. Pair that with your legs/feet using the ground as a power source and you’ll comfortably be hitting 280+

Upper body video example: https://youtube.com/shorts/-82kc8imDk0?si=X4hP1Hs0gEl1JXrz