Auto / Aspect Ratio (or Custom if you are intentionally downscaling resolution).
| Problem | Solution | |---------|----------| | | Set game's UI to static scaling (no dynamic HUD) OR enable UI Smoothing in LS advanced options. | | Screen flickers when active | Change Capture API from DXGI → WGC. | | High input lag | Reduce Max Frame Latency to 1; ensure base FPS is not too low (<40). | | Frame gen not smooth / stutter | Lock your game's FPS (e.g., to 60 with RTSS) then use X2 to hit 120. | | Black screen after enabling | Restart LS, run as admin, turn off HDR (temporarily). | | Audio desync | Unlikely – LS only affects video; check game’s own audio sync. |
Lossless Scaling is a lightweight Windows application designed to upscale windowed games using advanced spatial and temporal algorithms. While it initially gained fame for bringing spatial upscalers like FSR and NIS to any game, its crowning achievement is LSFG—a proprietary, machine-learning-based frame generation algorithm developed independently of major GPU manufacturers.
LSFG 3 offers standard frame generation, as well as triple and quadruple settings, just like DLSS 4. You can even set your own custom frame generation factor up to X20. In real-world testing with an RTX 4080 running Marvel Rivals at 4K with the highest graphics preset, enabling LSFG 3's X4 setting boosted frame rates from around 50 FPS to between 170 and 180 FPS—all without any upscaling or additional tricks. Lossless Scaling -LSFG 3-
No review of is honest without the cons:
: Even with the latency improvements in LSFG 3, frame interpolation inherently adds input lag. For fast-paced competitive titles where every millisecond matters, native high framerates remain preferable.
, allowing users to multiply their base frame rate significantly. Improved Visual Quality Auto / Aspect Ratio (or Custom if you
Building on a new, highly efficient architecture, LSFG 3 was officially unveiled on , marking the anniversary of the original LSFG release. It is no longer just a tool for pixel-perfect integer scaling; it is now a robust, AI-driven frame generation machine designed to breathe new life into your gaming library, regardless of the hardware you own.
The release of the LSFG 3 architecture significantly improves performance, reduces latency, and addresses traditional frame generation flaws. It challenges proprietary alternatives like NVIDIA DLSS, AMD FSR, and Intel XeSS. The Technology Behind LSFG 3
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. | | High input lag | Reduce Max
Given the speed of improvements from LSFG 2.0 to 3.0, it is plausible that by 2025, this $7 utility will be indistinguishable from first-party solutions for the majority of gamers.
Traditional frame generation technologies, like Nvidia's DLSS 3 or AMD's FSR 3, rely heavily on . These are data streams provided directly by the game engine that tell the upscaler exactly how 3D objects, cameras, and pixels are moving from one frame to the next. Because they require engine-level data, developers must manually integrate DLSS 3 or FSR 3 into every individual game.
If you are still gaming on an Nvidia GTX 1080 Ti or an AMD RX 580, native DLSS is entirely out of reach. LSFG 3.0 gives these legendary legacy cards a massive lease on life, allowing them to drive modern high-refresh-rate monitors in games that would otherwise reduce them to a slideshow. Limitations to Keep in Mind
Version 2.x of LSFG was functional, but it struggled with artifacts around moving objects or interface elements. LSFG 3 tackles these issues head-on. The official patch notes promise, and user tests confirm, "reduced flickering and border artifacts, with noticeable enhancements in motion clarity and overall smoothness". In real-world testing, the annoying "head disappearing" glitch seen in some first-person shooters is virtually non-existent in the new version, and G-Sync compatibility appears to have improved drastically, resulting in far less stuttering.
Click the button in the top right corner of the Lossless Scaling app. You will see a 5-second countdown timer. Quickly click back into your game window. Alternatively, use the default hotkey: Ctrl + Alt + S . The Golden Rules of LSFG 3 Optimization