It’s a great game and I’m so glad I finally got to play it.
I’m running a RTX 2070 Super and a Ryzen 5 3600 with 32 gigs of RAM. Using Xenia-Canary I could run the game at 1080p with decent framerate, but that caused some really unpleasant brightness issues at night, so I stuck with 720p and honestly stopped noticing the low resolution after a while. The game ran at a stable 60 all the way to the end and I encountered absolutely no issues besides some flickering shadows once or twice.
If you have a decent gaming PC and have never played the original RDR I strongly recommend you try this. It can be a bit of a faff to find what emulator settings work for you, but once you get it working properly, it’s an absolute blast. RDR still holds up really well in my opinion.