Rendering pages in NodeJS

When a page has dynamic data, it often happens that when the page loads for a short period of time, elements without dynamic data appear. From an aesthetic point of view, it looks terrible. In an attempt to solve the problem, I put a preloader on the pages, but even it doesn’t help. The data templates still “shoot through” when the page loads. It looks like this:

loadpage1924×924 1.79 MB

I note that I do not remember this when developing in PHP, but I often encounter it on NodeJS. Does anyone face this kind of thing? Is there a way around this?