Blender Screen Recording very fast

Hello there!
I`m with a problem in Blender Screen Recorder. I can record, but the final file is playing very fast! How can I solve that?
For example: I record as *.mp4 or any other video file. The file result is playing very fast. Not only 30fps as I putted to record.
Is there anybody that can help me?

Moved from “General Forums > Blender and CG Discussions” to “Support > Technical Support”

Where did you set the fps value? In Render Properties, or in User Preferences (System > Screencast)?