Hello , im not a really active user in this forum neither ingame , but a while ago i discovered something called Framerate interpolation wich is basically doubling up the frames of a 30fps video (in my case) and letting a software "guess" what frames should be in between to make it look like a 60 FPS video
sadly , this was not me playing live , it's an added video effect , there is ways to have live frame interpolation for some games but that's kind of a tricky thing to do .
I've also seen people doing this with filters using OBS (https://obsproject.com) But there wasn't much information on how he did it , i mean it would be cool to be able to play PSO BB with a "Simulated 60 fps" in live if you have processing power to spare !
So yeah i just wanted to showcase that video :
Be sure to select 720p60 on youtube to be able to notice the difference :