Definitely agree with this. Currently, I am running a side project with a friend (which we hope to turn into a company). On our roadmap, we have Product/Market Fit and after that, Product Optimization.

We have released mobile apps for iOS and Android but they are 100% mobile web views. We want to be able to prototype quickly and figure using web views is the best way to do this (no approval waits, cross platform). Registration conversion rates are bad and the UX is what you get with a non-optimized mobile web view.

Despite that, the data we are gathering from initial testing is valuable. We've been able to gather that users find the base product interesting but our engagement at the end of the funnel is not as high as we like.

For us, we consider moving from web to native would be the highest form of optimization but we want to get the product right first.