As with all irritants - it is worth looking for the cause of this phenomenon - it can lie both on your side and on the side of your counterpart.
Perhaps you strongly feel insincerity, perhaps - you think it is strange / selfish such behavior, or think you do not deserve such treatment
There is no such thing as too kind or too polite. If you are annoyed by "kindness" or "politeness" in the behavior of specific individuals - perhaps they are hypocritical, or this is how their complexes are manifested. That is, this is not the true face of these people, but only a mask. Sincere kindness or politeness does not cause irritation, it is unobtrusive and invisible.
Therefore, the answer is quite simple - do not communicate with those who annoy you, or if this is not possible, minimize contact. Your nerves are more precious.