OpenCamera settings for clear video (full HD, 60 fps) without voice filter

Hello everyone, I just purchased my first Fairphone (5) a week ago. Yesterday, I went to a concert and realized that the audio quality in the video recorded at the concert is completely distorted. I’ve read that this has something to do with the standard audio filter, and a suggested solution is to download OpenCamera and set the “audio source” to “unprocessed.” I still need to test this in a loud environment, BUT now, when I record video with OpenCamera, the quality is extremely low, and my videos are all blurry. I have selected standard video options (Full HD, 60 fps), but there is a long list of settings I am not familiar with, and I think it has something to do with those. Has anyone already tested these settings and found a combination for clear Full HD, 60 fps video on OpenCamera? Thanks a lot!