obs can not stream because the video it frezze and it is so slow

[Pablo_emt]

Hi, I am using OBS Mac High Sierra with obs cam App on iPhone 12 and obs virtual cam for stream by zoom, but when I run the presentation the vídeo it frezze and so slow. CPU use is up to 28-30%, so I can not stream by zoom. Please I need to know if I need an special settings. Thanks