Option for "Fast until an attack or message appears"

[SandJ]

When playing against the AI, sometimes everything is plodding along fine and I want to speed up the game until either someone changes alliance or Gaia attacks or some other event occurs.  At that point I want the game to run slowly so I can go back to micromanaging.

It seems all such events cause a message to appear.

So I would like a speed setting option that says "Knock the speed down to 0.1 whenever a message appears".  Or, alternatively, "Pause the game whenever a message appears".

It would be particularly beneficial for me in that I normally play games with the sound off.

Would that be a useful feature?