Deinterlacing advice

[flossy_cake]

Hello, I am interested in deinterlacing the Bluray release of classic comedy show Fawlty Towers. The Bluray is 1080i at mostly 1:1 cadence for the indoor shots, and rarely has some outdoor shots at 2:2.

My goal is to convert it to 1080p50 files, preserving the full framerate of the 1:1 cadence sections. I am not bothered if the 2:2 cadence sections aren't weaved to true 1080p frames since they are rare.

In researching I came across this ranking site for deinterlacers: https://videoprocessing.ai/benchmarks/deinterlacer.html

Highlighted in red are the ones with seemingly acceptable frame rates, otherwise it seems I would have to leave my PC on for several days at 100% CPU load which is not practical for me.



So far these are my findings of the deinterlacers highlighted in red:

Bob
I didn't find this acceptable since it is too flickery and wastes vertical resolution. It does preserve the full framerate of 1:1 cadence though, so I would still prefer it to any half framerate deinterlacer.

Vapoursynth EEDI3, Vapoursynth TDeintMod
I haven't tried these as I'm not familiar with Vapoursynth yet. Can I use them through ffmpeg? I'm new to all this and my understanding is limited.

Weston 3-field, Yadif, Bob-weave
I was able to test these as they are included with ffmpeg.

Weston 3-field: seems to be identical to bob? I can't see a significant improvement vs bob. I'm not sure if this is due to incorrect implementation in ffmpeg as there are articles saying it was developed by a BBC engineer so it really should be better than bob.

Yadif: seems decent but fails to resolve high contrast 1px patterns in vertical direction, and has some wrong colour pixels on certain patterns. It is also very old.

Bob-weave: seems decent. Resolves high contrast 1px vertical patterns albeit with some random flickering/glitches. But apart from that it seems to fit the bill.

.zip file with some short video clips comparing the above 3
https://drive.google.com/file/d/1aL_...ew?usp=sharing

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Before I commit to using ffmpeg's bob-weave deinterlacer, are there any others that might suit my requirements?

For example, my Nvidia GPU has its own DXVA2 deinterlacing which is ok -- is it possible to somehow use that deinterlacer during the transcoding process?

Thanks