To be fair, Delin's VA is kinda bad in Japanese as well; the grunting is also really over the top in that version as well. And he is supposed to be a goofball character, kind of like Goro in Shenmue 1. Now there's a VA which I prefer in the English version, haha. Oh, and Chai's.
I find Shenmue 2 a beautiful game with the setting, I wouldn't want to ruin that with the English voice acting and call it acting is being generous. It makes it cloud cukoo land. Delin comes across as a nutcase who puts far too much of himself in moving boxes.
Ugh. I hate Delin's Japanese voice.
"Hrrrgnnngnggngngnininin"