External mic sounds distorted, like a robot when live and on recordings

This started happening a couple of months ago. My high end podcasting microphone that connects to my MacBook Pro via USB stopped working well with Zoom. People told me I sound like a robot. I recorded myself and they are right. I sound fine when using Macbook's mic or my AirPods. I tried switching the USB ports, I switched from USB to USB-C. Still the problem persists. I updated the Zoom app the the latest. I restarted the MacBook. I've got strong Wi-Fi. 

This said, the podcasting mic works perfectly fine when I record to GarageBand or to PhotoBooth. But when I launch a Zoom meeting, then via the Zoom app I sound tinny. I go back to PhotoBooth and I sound amazing. I can't figure it out. What's up with Zoom? Any advice?