Antialiasing As Post Effect Blurring UI Text

Hello,

I've been trying out the new UI tools, and they've been working great. As soon as I turn on Antialising As Post Effect, though, it gets blurry.

I get this is antialiasing doing what it's supposed to, but I guess I expected it to treat the UI canvas differently.

Is there anything I can do to get around this problem? The rest of the scene looks so much better with antialiasing on, but the text gets unreadable at farther distances.

Edit: To clarify, this is using a World Space canvas.