Question [Q] Video Redording

Hi. I recently started using my p880's camera a lot, and what I found out is that no matter I chose 720p, 1080p, MPEG4 or H264, my phone kept recoding videos at 22 fps, which is really low. Correct me if I'm wrong, but I thought this phone records 1080p 30fps. This could be an isssue of the ROM that I'm using, but I'm not sure... I'm currently using CM11 Nightlies .

Do you guys think that it's the ROM that causes that low-fps issue?