In the setup.ini file in there is a line that says dividetexturesize. I believe it is set to 2 by default, at least that's what mine is currently set to (I've messed with it a bit so it might have been something else). You can set it to 1. Save it, the relaunch Reloaded. That will improve your texture resolution. Might slow ya down a bit though. It probably won't do much in the way of smoothing your polygons, though. I think the only way you'll be able to do that is to add more polygons. I believe smoothing is simply averaging the normals of the adjacent polygons and I don't think the Direct x 9 format can do that, actually I believe it's done by the rendering engine. I could be wrong, though. Good luck!
MAME Cab PC: i7 4770@3.4Ghz (passmark 9945), 12GB RAM, Win 8.1/64, GeForce GTX645 (passmark 1898); Shiny new laptop: i7 4800MQ@2.7Ghz (passmark 8586), 16GB RAM, Win 8.1/64, GeForce GTX870M (passmark 3598); Old laptop: i5@2.3Ghz, 8GB RAM, Win 7/64, Intel 3000 graphics