compression settings

[VCRvideocapturing]

Okay, first about speed: try Vapoursynth instead of Avisynth since it's multithreading support is better + more filters can use the gpu which depending on what you do can speed things up.
(When using Avisynth, make sure to use 64bit Avisynth and try adjusting the number of threads, depending on your settings and content adjusting the thread count up or down might speed up things.)
The encoding part is probably not whats slowing you down.

Cu Selur

Thank you for helping.
Ok I will try vaporsynth.
I don't know what version of Avisynth I'm using it downloaded loaded with Hybird software

My computer 64bit, I just take my footage from moviestudio and import it into hybrid
set the sound to pass through first, sometime pass through all, then go to the filters tab go to de-interlace, as I'm using lagrith it does not flag interlacing I set it to override in put scan then select upper field first field order 1

For any of this to work I have to set 'Reduce interlace flicker' and de-interlace method to none in my moviestudio software only then does the imported footage in Hybrid de-interlace for me otherwise it does not do anything apart from add shimmer on fast movement, although the interlaced lines remain.

I have tried every option, be it progressive, upperfield, lower field, blend, you name it my friend.

Then I resize it to 4k that way YouTube gives it the better quality VP9 codec.

Here is a very short old news clip I rendered earlier today. I used virtualdub, cleaned it in moviestudio
Upperfield first, de-interlace  method set to none
Expoted upper field first with reduce interlace flicker on.

Lagrith lossless codec used
Final file is Hybrid render file .h264
Bitrate set to 50,000 because I felt like it
Encoding settings (high 4:2:2)
Bit depth 5.2 because hybrid told me to because I was using 4k resolution

Here is the very short clip (it must be very old) it mentions "West Germany" on the news.

https://www.youtube.com/watch?v=oVC5ZjqF0YQ&t=1s

Thanks for this great software and help.