Hate to be impatient but fpkg is needed
I understand there has been progress in the area, but I do think we should try to brute force this issue with multiple dev teams. We need hardware acceleration.
Here's my idea we use ffpfs and dont compress it into ffpfsc because the compression is slowing us down. Theoretically we can load a ffpfs file with modified shadowmount and kstuff. Even if we load the game through the current methods it should increase speed with less compression. We can also make ffpfsc files that are only slightly compressed which could increase read speeds.