Lag from 700 Actors?

I have a scene with 700 very simple actors (a mesh, an array and some floats). Tick is disabled and there is no repeating code (Only BeginPlay and Constructor has anything) yet I am getting 13 fps in my scene.

Any tips are appreciated. Thank you!

Edit: Changing the mesh type to static has drastically improved performance. However, I am still wondering what else could be done if I ever need to further improve performance.