Caliburn framework for WPF, what about performance?

Question

.NET

I know this is a rather vague question, but still...
WPF is a great technology that I really like, but so far there are performance issues. There is a project which uses WPF and Calibrun framework. One of the priorities of this project is performance. Judging by the way Caliburn works, it uses reflection, and this is a 100% performance killer.
I would like to hear the opinion of people who have used this framework.
Am I right about reflection?
How much does Caliburn kill performance?
PS: We are talking about a large corporate project with a bunch of tables, text boxes and other controls.

Answer 1

Caliburn.Micro is guaranteed not to introduce a strong performance drop, and provides a lot of convenience. Used by me in development for windows phone 8.1.

Answer 2

Most precisely, this answer can be answered by writing an application prototype with the generation of the required amount of data. I would spend a couple of hours/days on this.

Answer 3

Kakaha this caliburn. Productivity drops specifically.