Thank you for picking this up.
Minor grammar issue. Page 33 and 37, it says "The napolitan back then was an improved version of it".
That makes it sounds like the napolitan "back then" was better.
What it should be: "This is the improved version of the napolitan from back then".
Because as the rest of the dialogue says, the "current/new" is better than the "before".
(I have to ask, does QC actually have access to the page images? I do translation too, so I get that the translator can sometimes make awkward-sounding English phrases due to being too literal or trying to work fast. QC should have been able to catch this error when double-checking the pages, though. Not noticing it really looks like QC is just checking text and not comparing it to the actual manga pages, because the dialogue sounds right if you are not seeing the past chapter context/actual panel images.)