Is it possible to render purely based GPU power?

[PtrStruct]

So running a 4090 I would love to see it utilize it. Currently when rendering a video it uses 20% of my GPU and my CPU is at 80 - 100% running a 13900K.

I tried setting the gpu flag to true and setting it to nvidia but that didn't seem to do much.

Is there a reason for this or am I missing something?

a 30 second clip takes about 30-35 minutes.

GPU Utilization. https://i.imgur.com/VQwIW3x.png

- blur
blur: true
blur amount: 1.3
blur output fps: 240
blur weighting: gaussian_sym

- interpolation
interpolate: true
interpolated fps: 960

- rendering
quality: 15
preview: true
detailed filenames: false

- timescale
input timescale: 1
output timescale: 1
adjust timescaled audio pitch: false

- filters
brightness: 1.75
saturation: 1.25
contrast: 1

- advanced rendering
gpu: true
gpu type (nvidia/amd/intel): nvidia
deduplicate: true
custom ffmpeg filters: -c:a copy -pix_fmt yuv420p10le -vf cas=0.6

- advanced blur
blur weighting gaussian std dev: 1
blur weighting triangle reverse: false
blur weighting bound: [0,1]

- advanced interpolation
interpolation program (svp/rife/rife-ncnn): svp
interpolation speed: medium
interpolation tuning: film
interpolation algorithm: 13