The SD2SNES uses that FPGA to emulate the chips. This is what I was referring to. At this point I think it's better to just run the games off of a pc (or legit originals if you're a billionaire ofc).Or SD2SNES, which uses an FPGA to simulate all the chips except for the SA-1; Super FX support was just added. Real carts are a hassle, they wear out, batteries need to be replaced, etc.
You're gonna get better emulation with the computer than that FPGA.