In RetroArch, go to Settings > Video > Output. Set Threaded Video to ON. Set Vsync to OFF (reduces lag). Set resolution to 1x (native).

Focus on what works . Load up Chrono Trigger (SNES) or Final Fantasy Tactics (PS1). You’ll have a stable, lag-free, battery-friendly experience that won’t get you detention or infect your school account.

Save the PS3 for a dedicated gaming PC or a console. Your Chromebook is for homework and retro gems—and that is perfectly fine. If a website claims to have a “PS3 Emulator for Chromebook” that works without developer mode, report it as a scam. Do not enter your email address. Do not complete surveys. Your school account’s security is more important than playing The Last of Us in study hall.