somone help me please...i having serious fps drop problem when i playing blade and soul (TW),my pc spec show as below :

OS : window 7 ultimate (non-genuine)
GPU :leadtek Gtx960 hurricane
CPU: i5-3470 @3.20GHZ 3.60GHZ
RAM : 16GB(dual 8GB)
motherboard : gigabyte z77p-d3

what should i do ?? i will paid for those who can help me figure it out zzzzzzzzzz