Yes, there are. There is a sweetfx setup for it, an smaa injector thingy, a mod that changes how you color apply color and/or shine to ships (which is awesome), a few campaign mods at least one of which does mess with visuals. For me, its mostly about running the 32 million color mod V2, and turning bloom OFF in the launcher options. That takes care of most of the blur. Turn off FXAA in the launcher and run sweetfx and you can make it look great. Just takes some messing about. Nothing drastic.
edit: iirc my most recent sweetfx just substitutes SMAA for the games FXAA (which you should turn off) and uses some lumasharpen. If you zoom up under a tarka ship, and play around with lumasharpen, you can really see the gamut of detail levels that this game will display. It's been awhile, but I believe it was lumasharpen anyway. Play around with sweetfx, it's pretty powerful. The 1.5.1 vers is the latest.