Ok are far as i know this game does not too very little support the DX 11
The Game it self Supports mostly DX9 in witch this is what the game was made with.
DX11 is farely new and there are only a few real games that support DX11
So the Best idea is when playing STO is too turn off DX 11 You will get better Frame Rates with DX 9.
http://en.wikipedia.org/wiki/List_of_games_with_DirectX_11_support
Comments
I think you will find that DX 11 is in the game now ...
http://www.startrekonline.com/node/2745
DX11 is kinda like HD tv slightly better Video But not much better then DX9
DX9 has been around for years now.
yeah after alll its only over two years old...