WOW! Your board makes my almost 50-year old item look absolutely prehistoric!! In hindsight, I'm amazed that I was able to even give it away!
The boards look seriously fast, are they designed for that task or do they all go at that speed? (if you have the skills). Do they even have a daggerboard, or just a skeg, or skegs? I noticed that you were passing many other boards. Were they just tooling about or are you and the board just quicker than most? I suppose it's a bit like mtb, a good rider always looks faster.
No foot straps on my board. They were not a thing then, but I was always moving my feet around the deck. My home water was a 70-acre lake, so long reaches weren't an option. In the Summer there were lots of dinghies, beginners on every craft you could imagine, so maneuverability was a key survival skill. I loved racing but I was never as good as the 16-year olds that started the year before me. They just got the whole skills thing, seemingly without effort, and could do tricks like you would not believe. One young lad in particular was like a god dancing across the water and he always had the girls waiting for him when he beached. The only way I could beat him was to use the rules against him, or once, even to cheat! (Not my finest hour, I was ten years older and should have had more dignity!)
I was out
once on that lake in a 63 kph wind (according to the club house anemometer). Just a borrowed storm sail. The lake was too small for big waves to build up. The wind was that strong that there were almost no waves, just droplets likie bullets into the back of my head. I managed to get up and shot off like a scalded cat. I could steer a bit , but I was basically out of control and I needed rescuing from the far end when I couldn't raise the sail. I was the only idiot out that day, but the club captain had dared me!

It was him and his mate that came for me. It was a scary experience and I am amazed that I didn't take off into the air.