Extremely rough input lag comparison on my set-up between Pinball FX's Fish Tales on PS4, then Steam / PC, taken with 60 fps cell-phone footage. Input via a DualShock 4. To get the amount of delay, I play the video back frame-by-frame at 60 fps and count the frames between full button press and flipper response.
(To get to the controls that let you play this sub-60-second video frame-by-frame with the "." key on your keyboard and at 60 fps on YouTube, you may need to edit the URL from "/shorts/" to "/video/." Or maybe this link to it as a regular video, not a Short, will work: https://youtu.be/DgIfvGMmM_o )
This comparison is NOT scientific or conclusive and probably won't reflect whatever you get on your own set-up!
My PC is a mid-range gaming laptop from 2020; its CPU is well above the game's minimum spec but slightly BELOW the recommended spec, which is why I had bought the game on PS4 in the first place.
It was mostly to help me decide if I wanted to shell out all the $$$ to re-buy the tables to play them on my PC.
I counted a delay of ~ 4 frames on PS4 and ~ 6 to 7 frames on the PC.
In the PC / Steam version, I had Vsync off in the game's settings, started at otherwise medium detail, then tried low, then low with FPS set to "Unlimited," which is the version you see here--they all responded in about 6 to 7 frames.
I was surprised the response was better on PS4! Maybe the DS4 is cheating for Sony, I dunno. Or I just did something wrong on PC. OR the PC just isn't good enough. The DS4 was plugged in in both cases, and I had not set up bluetooth input for it on the Windows 11 laptop.
Sound was on in the PS4 version too, but routing to headphones, so it was inaudible.
Anyway, as far as I can tell, with this PC I have, I'm better off playing the PS4 version.