No beta is perfect. Here are current issues in :

"Unlock the Power of Lossless Scaling: Download Lossless Scaling v2.5.0.1 Beta 2 Hotfix"

It is often recommended to lock the in-game frame rate (e.g., to 60 FPS) to provide a stable base for the frame generation algorithm to work from.

: Users can double, triple, or even quadruple their perceived frame rate. For instance, a game capped at 60 FPS can be boosted to 120 or 180 FPS for significantly smoother motion.