Interacting with NPCs

Hi all, looked it up and didn’t find any reference so rising a flag here.
When interacting with several of the NPCs in Sacrament I found that if I try to interact with them right when they start an animation (walking, sitting, etc…) the game becomes unresponsive until they finish said animation and react (ie the dialog pops up).
caught my by surprise the first time, was along animation (about 5s), thought the game froze and almost F4d it.