BTW have you ever worked with SSR and React ? 150ms is pretty standard time it takes to render a page with SSR. And as mentioned in the post, the 150ms is what we are getting. This is purely dependent on your project. For example, a simple "hello world" page might take a lot less than a full page with lots of components.
And 20ms is the total response time for the page. Redis takes just 2-3ms of it.