What do you mean that 'microsecond as barely acceptable'? That was too long for what? I'm skeptical that there are really that many players out there who are

What do you mean that 'microsecond as barely acceptable'? That was too long for what? I'm skeptical that there are really that many players out there who are in a position where a single microsecond would really make a difference. There are definitely companies out there in this situation, but not many.