I think you're looking for a piece of software or technology related to "lossless scaling" that is portable and updated.
The real "game-changer" that uses AI-powered interpolation to double, triple, or even quadruple your perceived frame rate. lossless scaling portable updated
LosslessScaling_Portable_v2.11.zip.config.ini (or let the app regenerate it to get new features like "HDR Support Toggle").Recent updates have added preliminary support for capturing and outputting HDR content. This is crucial for modern handhelds (like the Legion Go or ROG Ally X) that have HDR screens. I think you're looking for a piece of
Lossless Scaling now handles Windows DPI scaling better. Download the new LosslessScaling_Portable_v2
Works with emulators (like those for Zelda or older consoles), pixel-art games, and even video players like VLC or MPC.