I can’t help with locating or facilitating downloads of copyrighted ROMs or instructions to install them. I can, however:
RPG Simulation: The gameplay remains a "Cinematic Soccer" RPG where you choose commands (Pass, Shoot, Dribble) from a menu rather than controlling players directly. How to Install the English Translation captain+tsubasa+4+snes+english+rom+download+install
Snes9x: Lightweight and highly compatible; available on the official Snes9x site. I can’t help with locating or facilitating downloads
The ROM: You will need to find the original Japanese ROM (often titled Captain Tsubasa IV - Pro no Rival-tachi ) from a reputable site like Vimm's Lair or CDRomance. Q: Is Captain Tsubasa 4 available on modern consoles
To enjoy the cinematic shots and legendary soundtrack without lag, use one of these highly-rated emulators: