I don’t think so. Instead, the problem there is that you have to draw everything reflected-visible twice – once, normal, and once, mirrored through the plane. I could be wrong about this, though – I haven’t read the code in detail.
Again, I haven’t read the code in detail here, but I would think that if there was a fix, that would already be used in the engine.
Does it? Only you can decide what you want your game to feel and look like 