Some players have noted that turning off Fog of War makes the game run faster. The devs warned us that doing so would break spies, and they're right, it does. Some of us like the zippy speed enough to put up with no spies. Some do not. That's why it's a player's choice, not a "broken feature."
If you're having trouble, ask for help. If you don't like it, register so we have the icon to know that you've actually tried the game and paid for it. When someone without the game icon puts up a post ripping apart the game, it makes me wonder if they've downloaded the, ahem, slightly altered torrent/pirate version.