Slow (?) HW-Transcoding with I5-11400 on Proxmox + Jellyfin via Docker

[bentrades]

I did the driver activation but are unable to get it working with both low power encoders checked.
However I was able I think to set up Hardware Based Transcoding and are now at 41 FPS when transcoding a HEVC 10bit SDR with 16 mbits to 15. And now really the CPU is just idling around how I expected it to be. Assuming i have reached the right configuration.

Stream mapping:
Stream #0:0 -> #0:0 (hevc (hevc_qsv) -> hevc (hevc_qsv))
Stream #0:1 -> #0:1 (eac3 (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[hls @ 0x5eac22f6ef40] Opening '/config/cache/transcodes/44523164c44ca1a35593492e9099b7d6-1.mp4' for writing
Output #0, hls, to '/config/cache/transcodes/44523164c44ca1a35593492e9099b7d6.m3u8':
Metadata:
encoder : Lavf61.1.100
Stream #0:0: Video: hevc (hvc1 / 0x3163766, qsv(tv, bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 14616 kb/s, 23.98 fps, 24k tbn (default)
Metadata:
encoder : Lavc61.3.100 hevc_qsv
Side data:
cpb: bitrate max/min/avg: 14616000/0/14616000 buffer size: 29232000 vbv_delay: N/A
Stream #0:1: Audio: aac, 48000 Hz, stereo, s16, 256 kb/s (default)
Metadata:
encoder : Lavc61.3.100 libfdk_aac
frame= 12 fps=0.0 q=-0.0 size=N/A time=00:00:00.00 bitrate=N/A speed= 0x
frame= 33 fps= 33 q=-0.0 size=N/A time=00:00:00.87 bitrate=N/A speed=0.876x
frame= 54 fps= 36 q=-0.0 size=N/A time=00:00:01.75 bitrate=N/A speed=1.17x
[hls @ 0x5eac22f6ef40] Opening '/config/cache/transcodes/44523164c44ca1a35593492e9099b7d641.mp4' for writing
frame= 77 fps= 38 q=-0.0 size=N/A time=00:00:02.71 bitrate=N/A speed=1.36x
frame= 97 fps= 39 q=-0.0 size=N/A time=00:00:03.58 bitrate=N/A speed=1.43x
frame= 119 fps= 40 q=-0.0 size=N/A time=00:00:04.46 bitrate=N/A speed=1.49x
frame= 145 fps= 41 q=-0.0 size=N/A time=00:00:05.54 bitrate=N/A speed=1.58x
[hls @ 0x5eac22f6ef40] Opening '/config/cache/transcodes/44523164c44ca1a35593492e9099b7d642.mp4' for writing