Temporal AA is basically a way to get higher sample count for anti-aliasing (dealing with jagged edges and shimmering) but it samples from previous frames which causes artifacts like that blur / ghosting you see in the image.
The jagged edges on the textures usually has to do with the textures being too high of a resolution for how much space they are taking on the screen, to solve that part you can use mipmapping. I assume the images are just flat textures. It could also be that the source texture itself has some issues which the TAA could fix.