Quicktime Screen Recording - Higher quality missing

Everywhere I've read that Quicktime screen recording has a medium and a higher quality setting, but when I try to do a screen recording, it doesn't give me any quality options. It just has options for the microphone. See the attached photo.

How can I get it to give me an option for high quality screen recording? The default seems to be lower quality, which I can't use. Thanks in advance for any help!!