well im found what was my fps problem, the 6.4.12 after some time fps crash to 0 and screen freez, im still able too hear everything but cant see anything,
i had a older version that i deleted to update to u6.4.12 and it happen that i just remember that i had the old one on my laptop, after 3h of play my fps stays around 40-50 whit no decrease and instability, i dont know what is change in the new one but it may be incompatible whit something in my pc.
the 1.03.12 works perfectly