I didn't say that repressed anger makes you get tongue tied. I suggested that your overall difficulty connecting with other people may be partially affected by your unexpressed anger because that anger tends to seep through in your posts here. You often seem angry that "life isn't fair" or you got the short end of the stick in terms of personal qualities or childhood experiences. I would imagine that people who know you see and feel this sense of anger inside you also since it is apparent to us. It may be a turn off to others in real life, too. You don't even have to speak for others to see it; in some people, it's expressed in their body language or in their facial expressions or in their behaviors.

Divine suggested that a slow processing speed might be correlated with low intelligence. I was pointing out, through my own example, that it's not necessarily the case.