I turned on Nanite for all the water models and the landscape.
After increasing the settings and lowering the distances this is what it looks like in Lumen overview. There are still many black spots but it’s less of an issue when looking through the camera views now. Playing with my Scalability settings lets me increase the quality of the preview. It looks better when it’s at a higher setting. I guess turning on Nanite for most stuff and adjusting a few settings fixed it.
