You need to send your Mavic to DJI. I had the same issue and they will make you send them video examples of what is blurry and then finally after having you do a bunch of BS they will tell you to send it in and they will replace the camera.
Just picked up a DJI Mavic Pro about a month ago and have been trying to practice as much as possible :)
Let me know if any of you guys are local or if there are "Drone Meetups" in the area, I'd be down to come join in on the fun! Cheers everyone!