There's some real speed. Moves so fast the ground breaks just from speed alone. No other naruto character can replicate those kinds of speeds and that isn't even close to the level of speeds you are putting them on.
While I get your point, you are also attributing to artistic effect in a way. And also key point, Part 1 Rock Lee isn't a top tier speedster. BM Naruto and Juubito never made those yet Kishimoto shows them way light years ahead of Part 1 Rock Lee.
That supersonic attack has been heavily debated and its up to you, its split.
That's true. Let us not forget that Gai himself stated that his 7th gate form was only supersonic and that was his punch. Given that a punch is faster than typical movement speed, it's a stretch to even say 7th gate is supersonic as a whole. Anyway Supersonic is anything between Mach 1 - 5. Gai is maximum Mach 5 and that's in 7th gate. Lee who could not use 7th gate, at least not at the time would be slower than that. Let us also not forget that Kishimoto himself said that if guns were in the Naruto world, they would dominate over the shinobi. Now of course I wont assume that's true for any top tiers revealed after he said this including Hashirama, but that gives you a good idea of the speed and level that the overwhelming majority of Naruto characters fall under. These speed calcs of Mach hundreds and thousands are completely ridiculous and contradict both character statements and author statements as well.
First of all there are two translations on that.
One says supersonic. Other says, friction made from fire. I like the 2nd one better because it seems to be more accurate in the feat showings and plus supersonic kind of contradicts.
Raikage and KCM Naruto are supposed to be faster than 6 Gated Gai yet they don't make flames.
And also key point, fire from friction is very likely a hypersonic attack or low hypersonic or higher at least usually.
Also your guns statement is a misunderstanding. Kishimoto said kunai and shurikens couldn't compete but more importantly ruin the ninja likeness of it. Instead you just get a regular modern shooter manga shonen like any other. Not as unique. Even if he indirectly stated it as I show here.
Firstly, projectile weapons such as guns aren’t allowed. (The one exceptionis Inari’s bowgun.) Guns aren’t suited to ninja. Gunpowder is used in the anime,though I don’t think it should be there. And, vehicles such as aeroplanes arenot allowed. I try to restrain technology that can be used for war... Forexample, if missiles were in it, it’d be the end. (laughs)
Firstly, that interview is very old. In fact I recall it being a decade old at least. 2nd, he seems to implu more on ninja likeness and finally being a very old interview, its not a fair accurate representation of now. Kishimoto is a human and people change minds. If he intended guns to be superior which is only implied a little at best here even then that's debatable, things are way different now. You see Asura Path's missiles and other hax jutsus that are worse than missiles (well depending on the missile).
Finally Pain's rasenshuriken feat makes me think that supersonic+ was a legit established feat in that series if supersonic airwaves wasn't convincing.
then again it doesn't change that majority of naruto characters including fodder are not supersonic but likely subsonic at best. But it doesn't detract the plausible handful ones.
And yes, generally no one in Naruto isn't even supersonic, but Hashirama and Madara have proven otherwise because they're TOP TIERS.
Yes most aren't or at least subsonic range. But I dare say high tier speedsters can plausibly break that mark.
Anyway reaction feat wise it should be known strong hypersonic reactions in the top tier at least exist.