We just did this as a test -> you should always use mip maps, so that you get a good performance. I would recommend you to change the texture streaming distance ->
"I found out you can adjust the distance of the texture streaming using the “Streaming Distance Multiplier” setting in the mesh window. Since I create my models in meters and have to set the build scale up to 100, I figured I need to set the Streaming Distance Multiplier to 1000 to get it look right. I hope this helps! " 