I agree with you and there are so many other places where speed takes over. I don’t think that it’s proper to do “funny” things in a shul in order to disrupt the tefillah.
I would also mention the daily first brocha of Krias Shema after Yishtabach – usually way too fast. Since pronouncing Shema correctly is me’akev in being yotzei, so too are the brochas – they must be pronounced as clearly as the Shema itself.