By downloading and installing Update 1.28 from ELAmigostor, you'll enjoy:

: Owners of RTX 4000 and 5000 series GPUs can now use Multi Frame Generation (X2, X3, and X4 modes), which drastically boosts frame rates in demanding scenes.

To successfully apply this update, ensure your base game is already updated to a compatible previous version (often v1.1.x or v1.2.7). Users with older GPUs (like the GTX 10-series) should note that while performance is improved, the new DLSS 4 and Multi-Frame Generation features require hardware.