Its funny you say this because animators tend to be very picky and really do have quite high standards(its why lots of them don't like foreign animators who hand in sub par work, or when the compositing in the final episode hides their animation).
Animation is not the only factor, but I was talking about from a production as opposed to story standpoint. Its also worth noting that a good portion of episode 309 was fairly mediocre filler action.
And there are more than a few examples. There are tons of episodes in Wano which are...
WTF are you on about?
How the fuck did Sanji look slow in the queen fight??? If anything, they emphasize his super speed way more than the manga did by actually bothering to show Sani's pov when it came to his movement speed in very impressive scenes.
Animation wise, not at all.