Don't know about Android, but on iOS and macOS, Apple introduced the WKWebView technology that is recommended over using normal web views (the old way for many years), and it interacts seamlessly and instantly with Swift (and probably Objective-C too), the system even bridges the types for you as they go across the boundary. Apple specifically tried to further support the growing desire to use web views and Javascript technology inside a native app. I've used it quite successfully, the experience feels like native.

Perhaps systems that automatically build out to iOS have not been updated to use these features, or there is something else going on in Cordova to introduce latency? Because for at least 2 years now there is no reason to have the problem you describe.