May I know what problem(s) you are trying to solve with this mod installed? May I know what improvements your were looking for?

If you were expecting to increase performance compared to Vanilla, then tough luck, it would only be reasonable to use OptiFine Internal Shaders if you don't mind the decrease in performance. This mod offers the same but less impact on performance.

I thought the mod solved the anti-aliasing problems that optifine usually already has built-in

I see. Yeah, anti-aliasing is not in the scope of this mod.

Do you know any mods that do this and don't give a problem with Sodium?

Sorry, I don't know...