Its true, damus is not smooth. There is a swiftui bug that makes it impossible for it to be smooth until we switch to some other method:

[Critical Issue] Content with vari… | Apple Developer Forums

GitHub

GitHub - chrysb/LazyVStackStutter: This project demonstrates how LazyVStacks stutter within a ScrollView in SwiftUI

This project demonstrates how LazyVStacks stutter within a ScrollView in SwiftUI - chrysb/LazyVStackStutter