Funnily enough, if you actually have ADHD, then stimulants like adderall or even nicotine, will calm you down.
> Naturally people may choose to slow down tutorials, [...]
For me it also depends on what mood I'm in and whether I'm doing anything else at the same time. If I'm fully concentrating on a video, 2x is often fine. If I'm doing some physical task at the same time, I need it slower than that.
If I'm doing a mental task at the same, I can forget about getting anything out of the video. At least, if the mental task involves any words. So eg I could probably still follow along a technical discussion at roughly 1x speed while playing Tetris, but not while coding.
We get used to higher speeds when we consume a lot of content that way. Have you heard the systems used by experienced blind people? I cannot even understand the words in them, but months of training would probably fix that.
Watching your video at 1x still feels too slow, and it's just right for me at 2x speed (that's approximately how fast I normally talk if others don't tell me to slow down), although my usual YouTube watching speed is closer to 2.5-3x. That is to say, you're still faster than a lot of others.
I think it just takes practice --- I started at around 1.25x for videos, and slowly moved up from there. As you have noticed, once you've consumed enough sped-up content, your own speaking speed will also naturally increase.
https://en.m.wikipedia.org/wiki/James_Goodnight
I have watched one or two videos of his, and he spoke slowly, compared to the average person. I liked that. It sounded good.
Now I think speed adjustment come less from the natural speaking pace of the person than the subject matter.
I'm thinking of a channel like Accented Cinema (https://youtu.be/hfruMPONaYg), with a slowish talking pace, but as there's all the visual part going on at all times, it actually doesn't feel slow to my ear.
I felt the same for videos explaining concept I have no familiarity with, so I see as how fast the brain can process the info, less than the talking speed per se.
But it feels (very subjectively) faster to me than usual because you don't really seem to take any pauses. It's like the whole video is a single run-on sentence that I keep buffering, but I never get a chance to process it and flush the buffer.
Unfortunately a byproduct of listening to everything at 2x is I've had a number of folks say they have to watch my videos at 0.75x but even when I play back my own videos it feels painfully slow unless it's 2x.
For reference I've always found John Carmack's pacing perfect / natural and watchable at 2x too.
A recent video of mine is https://www.youtube.com/watch?v=pL-qft1ykek. It was posted on HN by someone else the other day so I'm not trying to do any self promotion here, it's just an example of a recent video I put up and am generally curious if anyone finds that too fast or it's normal. It's a regular unscripted video where I have a rough idea of what I want to cover and then turn on the mic, start recording and let it pan out organically. If I had to guess I'd say the last ~250-300 videos were recorded this way.