The issue is that this card is a complete pc basically so the bios i got is not the vga bios its the whole pc one, i saw the functions for pstates ( i think the cpu ones ) can be unlocked and some overclocking, but since i dont have modding experience i cant do it. I tried using a modding tool called amibcp i unlocked all the functions within it but when i flashed the bios back it brivke the card, luckily i have an external programmer so i flashed the original back and it works again.
It’s very good to have a programmer for BIOS chips 
This video card has an interesting history and production was not widespread, so you need to wait for an enthusiast who will overclock the BIOS and also make this information publicly available.