Upgrading steppers to increase carve speeds

Has anyone upgraded their steppers to increase the carving speeds? I would like to increase my carve speeds but am limited by my machine. Not sure
If this would help or if the controller unit is the issue. Any advice would be great.

The X-Carve Upgrade kit for Pre-NOV 2020 units includes wider belts and stronger steppers allowing additional depth per pass carves which expedite carve times…