Same here. It's frustrating being this way because you basically lose in most decision making forums by saying "I need to think about it". People who respond fast sound smart and knowledgeable. People who respond slowly don't necessarily sound stupid (I've found it's amazing how often saying nothing makes people think you are smart), but their input still gets overlooked because you end up in the position where if you can't present an argument against a decision being made a certain way on the spot then people don't see why it should wait.