Lmao.
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"Colder and
thicker". Thicker chakra is more potent chakra. The stronger an individuals chakra is the better their physical abilities and Ninjutsu become. MS Sasuke before unlocking V2 Susanoo>Hebi Sasuke in chakra potency. Thus MS Sasuke is faster.
Not to mention the reason why Sasuke went from being able to manifest a Ribcage Susanoo to being able to manifest a V4 Susanoo is because his chakra powers up, allowing him to use a stronger version of said techinique.
The rest is irrelevant as you can't actually prove CM2 Sasuke is fast enough to dodge Ay. Zero proof that CM2's boost would let him go from being unable to perceive Ay to being able to perceive, physically react and dodge.
Stop making excuses and posting about misconceptions as if you know what you are talking about.