How can I get maximum frame rate from a webcam?
Now, they go on to state what settings are necessary, how you would need to adjust the "shutter speed" (there is no actual shutter though), how using the Low Light Boost might severely drop the frame rate to as low as 5fps, etc. But, the important info.... well... read for yourself...
In short, it depends on the software you are using to take the video from the camera, the type of USB connection, the size of the image you are getting from the camera, and the capture settings WITHIN the software.
So... without more specific information from you, no more specific information could be given to you.
Are you saying that the webcam has no manufacturer markings on it at all, that could be used to figure out the exact product you have?
If it isn't built-in and if you haven't already done so, flip the webcam over and look for any part numbers that could be used to figure this out.
If it is built-in, then tell us what model of computer it is, and that should get us going down the right path.
In both cases, we can then figure out the specifications of the webcam, and also which drivers you need to download and install, so that your computer makes best use of the webcam and enables it to get the specified framerate.