Open Lossless Scaling and select your scaling type (e.g., LSFG 3.1).

Supports X2, X3, and X4 frame generation. On handhelds, X2 is the "sweet spot" for balancing visual smoothness with input latency.

The official installer version places drivers and hooks into your system. The portable variant offers distinct advantages:

Because the portable version runs "sandboxed," it has unique quirks.

The "Portable" variant is a self-contained .exe file that stores all its settings (hotkeys, scaling preferences, generation multipliers) in a local .ini file within the same folder. Here is why that matters: