i watched a video about how they speak and i have watched my grand dad on how he speaks
and they say a lot of "um" "uhh" and other pauses in their sentence (also "so" "seem")
also he mentions how it was HARD TO GET OUT OF CHARACTER..... and this could be due to psychopath and sociopath is very similar in traits and if he's a psychopath In real life it would indeed be hard for him to change back from pretending to be a high functioning sociopath
anyways just watch...