Some do some don't. Many players, especially ones that click with the team come back hot. I would like to see a stat about that though. Maybe if we lose in the first round like you seem to think we can look back at it.AD looked awful his first few games back before he got into a groove. He's a veteran.
I don't care who you are. After a month off, it takes time to get a rhythm back. This has been historically true for damn near every player coming back from a lengthy injury.