I don't know if I am remember correctly but I'm kind of remembering a somewhat new news post about a change to battle stats. I don't know if that's for users or the battle opponents. I haven't trained in some time and just started up again and my speed's lower than everything else.

You may be thinking about when they made speed static so it doesn't go up for opponents with each additional win.

Speed is a preference really, some people like having a good amount, some people insist on keeping it low. It's probably good to keep your lowest stat but not ignore it completely

for me, at my state, i raise it enough to unlock certain stage of scaled weapon, blessing and curse.

Yes, that's it. That's what I was thinking about. Such a dummy sometimes. :)