Of course, I honestly don't know exactly how it relates to cognitive/jungian functions if it does at all, but I can see it being an Pe-dom thing since they are better at responding to situations in the moment. They don't need to "organize" experiences in their heads.
Because when you experience your feelings for things... you're sort of categorizing things instead of just letting the situation "be" and reacting to what just... is.
However, if this is a thing that not only Pe-doms feel, then I find it super easy to argue that it is indeed an introverted feeling thing. Could be wrong, but feeling in general uses subjective experiences or qualia (such as feelings) to categorize experiences so they can make decisions (after all, if you don't know it's a chair ...how would you know that you could sit on it BEFORE trying to sit on it?). The fact that this processing is delayed for some people could be a sign that the person isn't well-versed in categorizing things based on such qualia.
Which brings up the notion that this could be the case for those who DO NOT have feeling as a dominant function.
I saw someplace on this forum that Fi-dom people are "internally sure" of themselves, and I am going to ASSUME (...again, correct me if I am wrong....) that it means that they know what an experience means for them and/or it comes easily to them when they need/want to think about "meaning". That's why that when they do decide to express themselves ....they can sound really ...."sturdy" (at least that's the word I'd use to describe introverted feeling, based on what I've seen on this forum).
Fe-dom people ...of course, use qualia. However, I won't say it is sturdy as Fi although it can look that way superficially. Since it is extroverted, it's going to suppress all that "what does this experience mean for me? How do I feel about it independent of context?" So, just like Fi-dom, Fe-dom doesn't have a delayed response, but it has a "coated" response. I won't say sugar-coated, because being Fe doesn't mean that things are roses to you. It's just that the responses are masked, and you see the "sureness" of the mask. KEEP IN MIND THE MASK ISN'T NECESSARILY NOT TRUE/FAKE. It is whatever the extroverted feeler decides to put forth, unconsciously or consciously or I don't know.
For those who have extroverted feeling, but not in the dominant function and/or isn't well practiced with extroverted feeling, they can probably have a "delayed response". The difference that I see between what you guys are talking about and what I think might be happening in Fe-NOT DOM people is that Fi-NOT DOM people really just don't know yet. It hasn't hit them yet. You guys are simply responding to things objectively. Extroverted feeling isn't objective in and of itself, but it forces objectivity. It's like an oatmeal pancake they smother in syrup BEFORE they "take a bite". Meaning, we (being the fe-aux/NOT DOM).... can take things in ....but we really don't know what to do with that. It's not how we categorize our world and we don't respond immediately to things. So Fe-not dom can putter around (I'd assume the puttering is true of Si/Ni doms/Fe-auxes). Actually, I also read on this forum that Ni-Fe people have this weird "inaction-action" thing, where they lose their clarity for a period of time and seem "Pe-ish" but then have a sudden spurt of "action".
....I had more to say.... but I forgot...