I'm sorry. I can't help but make a world-sized anti-field when the source IS THE FUCKING SIZE OF JUPITER!
PLUS: Nisorin has already made AAM field enhancements. Basically, there's nothing you can do about it. It's a generally accepted thing. People are already using big, powerful fields. Hell, even you used fields that spread across the battlefield and beyond, so you can't complain, Orph.