Zoom video lagging behind audio

Hello there. I am currently enrolled in an ASL class where there is no talking prohibited due to respect for our teacher. I have no issues with the app besides the video having roughly a 4 second delay on my end even though the audio is fine (when i've been able to talk with people). I've restarted and deleted the app multiple times but nothing seems to be changing the video lagging. If anyone has any ideas on how to fix this please help me.