Dear Wong,
If this behavior is taking place in local mode, then something is probably wrong with your configuration. Maybe you are experiencing a hardware performance issue.
Can you kindly share your server hardware characteristics? Is anyone accessing over the browser while the recording takes place? Are you recording to a local storage or to a network location?
Any chance you can take a snapshot of Windows Task Manager when the recording is taking place? Is there any other process running on the server besides mxfSPEEDRAIL?
We would like to check the server remotely. Any chance you can provide us TeamViewer credentials to the system?