Hi there community.
I don't know if you know the basics of the stat points in game, but if not i will summarize them.
You can get the next "things", per stat point:
VIT = 40 HP, 1 DEF
INT = 20 SP, 1 MR, Magic damage (MD)
STR = Atack damage (AD)
DEX = Damage reduction (DR) and a little AD
Now you know what you got by the points, let's talk about the "improvement by level". When you level up, even if you are not distributting the stat points, you get the "things" that we were talking about (40 HP, 1 DEF, 20 SP, etcetera). So we got something like "invisible stat points" every level we up 1 point of VIT, INT and STR. But nothing happens with the Dexterity (DEX) and with the DR as well.
My suggestion is, to give that "invisible stat point" to DEX just like the other basic stats. That means a slightly better AD and points of DR every some levels (if i am not wrong, the DR improves 1 point every 3 of DEX). So we can get a little more of efficiency and more help with the magic classes (per example).