UE Basics Thread, Talking, Learning, and Maybe More

Based on what I’ve done, I’m just surprised I’m getting this message already. There is just not that much. But I admit, I don’t have a feel yet for the load I’ve introduced into this project…
I’m wondering if the engine’s default texture pool setting or what ever it is called is on the low side? And can I up that setting without any dire consequence? I know there are multiple factors here.
In the image below I have removed both of the duplicate road sections, and there maybe 20 actors placed on this road, with zero foliage painting.

Thanks!