What do you mean by "low latency"? Low latency before the user sees anything? Low latency before the user can interact with the app? Low latency navigating to the next page? It's hard to answer every conceivable question in a headline.
Everything is vague to some degree. The hand-wringing over "performant" is just a meme.
Everything is vague to some degree. The hand-wringing over "performant" is just a meme.