What is the performance difference between rendering View vs rendering an HTML file in ASP.NET MVC?

Considering both containing same static content, what is the difference between rendering a view VS a HTML file from an action in ASP.NET MVC?

Background: I have some static content such as about page which I'm rendering as ActionResult view. I can also keep them in some HTML files.

Question: Does it make any sense to port the static content from view files to HTML files? I believe it will save server from processing View engine tasks - which is the reason for port (correct me, if I'm wrong).

One more important question: How do I handle Viewbag.Title thing? This is passed to _Layout from view file only?