I am just saying, because there are people out there saying Zoro didn't even tried be serious and such bs.
He put his bandana on and used 2 of his special moves - which he btw. used against Mihawk. And was sweating and huffing after he was done. So yeah, he clearly was serious here.
Like I said,I do think he was serious against pica but only when he was constrained by time and there are obviously levels to seriousness. Luffy was serious against Hody and Noah, doesn't mean he didn't have other things up his sleeve or that he went all out.
Zoro did use ISDS which is the bigger version of what he used against Mihawk in East blue,but we know Zoro got massively stronger after losing to Mihawk so we can't really know if that attack was still his ultimate at the end of paradise let alone postskip in Dressrossa.
Zoro will go all out when he mentions it or when we will see him having reach his limits in his fighting display.