As the OP said, it's not just mobile that's an issue. I'm also on MacBook air and it's annoying.

Why scrolljack in the first place? There's a reason why every "Show HN" with scrolljacking gets this complaint, and it's because it's extremely annoying. It literally adds nothing to your experience.

(Great idea though, I actually had a similar one myself. I think it's a very nice business model!)