To SMW. And I very rapidly concluded that unless I’m playing on original hardware instead of via emulation, this isn’t going to happen. Ah well. I’m generally not a good enough 2D platformer player to really get into Kaizo SMW, which was the whole point of the exercise. So I’ll watch others play it instead, which is just fine.
If it's the latency that's bothering you, running an FPGA emulator connected to a CRT will give you results nearly identical to the original hardware. The Mister FPGA system, which takes some study to learn and set up, adds about four scanlines of latency when its scaler is engaged, and when driving a CRT, I believe that the scaler is optional. (it's required when driving an HDMI monitor, AFAIK.) (edit to add: four scanlines is the smallest possible latency with the scaler, but it's in a mode that passes framerates exactly. Not all monitors like, for instance, trying to sync to arcade Donkey Kong's 60.6Hz signal. There are slower 1-lag-frame and 2-lag-frames scaler modes, which will display on practically any HDMI monitor, but then you're losing much of the reason to go FPGA in the first place.)
All the FPGA emulators are expensive -- the Mister is $350 to $400 for a basic kit with the fundamentals -- but the Mister in particular will emulate a *lot* of old systems. They just recently added the PS1, and they're trying to do the Saturn, although they're not sure they can manage it. That's about as far as the Mister will go... you might see other, older things added, but probably nothing newer or more capable than the Saturn. Even the Saturn may not happen.
BTW, FPGA is not magic. It's still emulation. But they can often get very close to the timings of the original. I was watching a looped demo of Ridge Racer on the PS1 versus the Mister's PS1, and as far as I could tell with my amateur eyes, they had bit-for-bit identical outputs.