[HELP] SCUNet(mlrt) running very slow

[andrewschen]

Hybrid_dev_2026.05.20-174257
VapoursynthR73_torch_2026.02.26 / VapoursynthR76_torch_2026.05.16 both tried
vs-mlrt_2026.03.18 / vs-mlrt_2026.03.26 both tried

encode FHD 1920x1080 video, svt-av1 crf20 preset 6 temporal filter 0 with 2~4 fps

original speed (no vs filter) is up to 80+ fps
Intel 275hx / 5090 laptop / 596.36 studio driver
3A game runs fine

Will test Hybrid_dev_2026.05.22-18618 later

Is there any setting I should do with geforce driver or nvidia app?