As I understand it, you have some inquiries related if CVO can support 1080p30 video output format. I understand that there is currently no ready preset for this. However, based on my understanding, there should be no issue for CVO to support that. It is recommended for you to open the CVO and configure to your target video settings. If there is any issue with a configuration, CVO will flag error at the IP message tab.
Please let me know if there is any concern. Thank you.