OptiScaler upscaling doesn't increase my FPS without Frame Generation
I don't seem to get any FPS improvement from upscaling alone.
I keep Frame Generation (FG) disabled because I don't want the additional input lag. I only want to use upscaling, similar to using FSR directly in the game's settings or AMD Radeon Super Resolution (RSR) through Adrenalin.
However, when I use OptiScaler upscaling, my FPS stays basically the same. I only get a noticeable performance increase when I enable Frame Generation.
For comparison, using the game's native FSR or AMD RSR does increase my FPS as expected.
Specs / tests:
GPU: AMD Radeon RX 7800 XT
CPU: Ryzen 7 9800X3D
Resolution: 4K
Games tested: Palworld and Witchfire
OptiScaler versions: 0.9.5-pre1 (20260803) and 0.9.4 Final
Frame Generation: Disabled
Tested FSR through OptiScaler