Kori serverfiles bug with attack speed

[zeimpekis9 93]

Hello community. I have a problem.
All the 2 hand swords of warrior have a bug, with the attack speed
I put 30 attack speed, and the max that is going is 20
It shows only until 20 attack speed or it cant red nothing else except 2. 
For example the 3169 weapon has 36 attack speed, but ingame it shows 26 attack speed and it gives to the char 26 attack speed.
can you help me?