Not a very good "ad" as your page is quite slow and skips many frames, especially when scrolling past "The fastest way to create a real web application."
I'm not seeing that. What browser/device are you using?
The interactivity on the home page is just using Tailwind. I don't see why it would be slow for you (other than that the site is quite visually complex, so it naturally requires some baseline level of performance on your device).
Funny that you say "Visually complex" and "requires some baseline level of performance" when this same machine handles 3D games that are a thousand orders of magnitude more complex than your HTML displaying text and a few colours. What am I expecting though, that's the state of the web these days. Keep on creating more of the same rather than trying to fix this brainrot foundation you're building on.
"Fast"