The game will snap into full screen with the software active. Alternatively, use the default hotkey: . Performance and Best Practices The Golden Rule: Base Framerate is King
The most significant change in v2.10.1 is the update to LSFG 2.2. The new version updates the UI detection part by reducing the level of over-detection, which eliminates some artifacts caused by UI detection and has a positive effect on the overall smoothness of the image. This matters because earlier versions would sometimes misidentify game interface elements, leading to unwanted shimmering or distortion around health bars, crosshairs, or menu text.
If using , your native baseline must be a locked 40 FPS or 60 FPS . Lossless Scaling v2.10.1
One of the most important aspects of using Lossless Scaling effectively is locking the base frame rate of the target game. For the best LSFG experience, it is highly recommended to lock the game's framerate to half, one-third, or one-quarter of the monitor's maximum refresh rate. This ensures consistent frame pacing and prevents stuttering. For example, if aiming for 120 FPS on a 120Hz monitor, the game should be locked to 60 FPS using in-game options or an external tool like RTSS.
: The target game must run in Windowed or Borderless Windowed mode; it will not work in Exclusive Fullscreen. The game will snap into full screen with the software active
: "Vsync" and "Allow tearing" were merged into a single dropdown menu to simplify configuration. Frame Generation Modes Version 2.10.1 continued to support the powerful : Doubles the perceived framerate (e.g., 30 FPS to 60 FPS).
The Steam Deck’s APU struggles with AAA games at native 800p. Set the game to 540p, use FSR upscaling to 800p, then enable LSFG to double the frames. You get playable Cyberpunk 2077 at 35-40 FPS that feels like 60-80 FPS. The new version updates the UI detection part
Head-to-head comparisons between Lossless Scaling and AFMF 2 reveal distinct trade-offs. AFMF 2 offers lower input latency and better overall image quality, but suffers from significant crosshair ghosting when quickly rotating the camera, which can be game-breaking for FPS titles. Lossless Scaling has much less ghosting but higher input lag, though its smoothness feels much closer to native FPS than AFMF 2’s. Both technologies have improved in their latest iterations, with AFMF 2 now using machine learning for frame generation and Lossless Scaling continuing to refine its UI detection and latency controls.
Before dissecting v2.10.1, it is essential to understand the tool's core mission. Developed by Toshiya Takeda, Lossless Scaling is a paid application available on Steam for a nominal fee. Its original purpose was simple: provide high-quality, integer-based screen scaling for games that didn't support modern resolutions.