The issue is: when you right click to hold and move the camera in World of Warcraft, the click doesn’t hold and so you can’t move the camera properly.
How to fix it?
If you have Razer Naga or any other mouse from Razer, you go to Razer Synapse 2.0, select the mouse from the interface, go to performance and switch “pooling rate” to 1000.
This way, the mouse will feel more fluid in WoW. From what I’ve experienced, the issue was gone with the right click and camera.
Also, you can try to disable addons like Bartender. Remove all the keybinds that are using “Shift”.