Thanks for your quick reply, just thought of something which I did not think about until after I read your reply. I patched the iso by using a difficulty mod (imbroglio v1.2 from ngplus)
I first tried enabling cheats and I have the file in the correct location I was still having issues for constant shaking/flickering screen.
I am using an NTSC-U image with the same id but then with me using a patched iso I saw it was that the crc did not match.
I renamed the file to 676D72C1.pnach (which I got from the pcsx2 log) and it seems to have worked and is much better now compared to before the shaking screen is completely gone
but there are still a few flickering screen issues
first being prior to game title screen which does not really matter personally
but the second and more important issue is that it also flickers like crazy at every victory screen after each battle, just want to confirm if this happens normally too? if so would there be any way to fix it?
other than that it does look nice and I can see the improvements compared to the old config
Many thanks