so i tried opengl, which didnt draw the 2D images correctly, they became all blury
The screenshot you posted looks good. What is the blurryness your talking about?

I don't really know delphix well. There might be a simple option you have to set to make it alot faster. Also, you should use the latest version of UnDelphiX, not the old DelphiX by hiroyuki hori which is not hardware accellerated and therefore horribly slow.