@dirty slime
His reactions aren't FTL. Not even close. The best feat you were able to mention was precog-dodging a Mach 1000 attack (high-end estimate) while in a space ship. There's still nothing that puts him even remotely close to FTL, even with precog. And precog dodging means he was dodging the aim of the people firing the weapon, meaning it's a Mach 2-3 feat with precog (high-end estimate, again). Any being moving Mach 10 or faster would be able to easily adapt to that, meaning precog-dodging would no longer work because he'd be unable to move his body to keep up with what he knew what was going to happen, and the faster entity could adapt to any defence he could put up.
By comparison, high-end feats for Naruto put them in the Mach 20-50 range, with Kaguya at the top of that or beyond. Meaning she's 5x faster than the highest end estimate I could possible give the Sith.
Sure, but it takes time. And Kaguya was able to achieve a similar feat instantly. Considering Sidious' limited use of TP in battle, I'd say chances are he wouldn't be able to mind control Kaguya, especially as her mental defences and powers are probably well beyond anyone Sidious ever fought besides Luke.
Probably the only Sith who has a chance here is Vitiate.
Pfffft... Vitiate. AKA: Sith Silver medalist. No matter what Bioware says or shows, he will never be as mighty as Palpatine since G-Cannon trumps EU. Sure he ate the souls of all those Sith Lords and ripped the planet they were on asunder, but that was during the time when there were many Sith, meaning that all that darkside energy wasn't fully focused upon him, just the largest concentration prior to the Baneite Sith, whom were capable of feats such as this without even trying. Sure he might have become a monster, but when comparing what Palpatine did during Dark Empire with his planetary surface/fleet wrecking force storms along with his constant draining of Byss' inhabitants over the years that enabled him to grow even higher in power; it's clear Valky won't win if the two come to blows.