/vr/ - Retro Games

I still have my CRT from childhood, but I don't know much about these sets on a technical level. I know, at least I think this is the case, that 240p is a much more stable image than 480i for tube televisions. Maybe less sharp, but it just looks nicer and jitters or 'flickers' less. I think some games support both modes - for example, Tekken 4 and Tekken 5 on PS2 have a 'sharp' and 'soft' visual mode. Sharp does look sharper, but it jitters/flickers more. I don't know the proper term for it. Soft mode doesn't have that same jittering, but the image itself is less sharp. I think I prefer soft to sharp in those games.
Is it right that a higher refresh rate makes the flickering go down? For fun, I hooked up my tube tv to my computer via a converter, and the picture quality is monstrously sharp, but also flickery. The refresh rate was set to 60 via my graphics card control panel, but the highest supportest refresh rate on this tv seems to be 75hz. Should I keep it on 75hz then? It's pretty neat watching old 4:3 programs on the tv, but I feel like that 480i style flickering is gonna give me a headache in the long term, whereas 240p output is a lot more easy on my eyes. But as far as I know, there's no way to make a modern PC convert video out to 240p.