speech impediment?

[allies426]

I know this is probably old, old discussion, but I didn't belong to 
this group way back when...

Does Dan Radcliffe have a slight speech impediment?  I remember after 
the first movie, I was shocked that he was the one cast for the part of 
Harry since he seemed to lisp a little on words like "such" and "much" -
 or is that just a British pronunciation?  I think he does a fantastic 
job and I don't notice the speech anymore, so if it was there maybe he 
grew out of it?

Allie