Recording a channel with fast motion template

I made some HTML animated template for start list with multiple pages. I would like to record my output to file which I need to send to approval.
I have tryied to use the ADD FILE command with many different parameters, but there was a problem with fast vertical motion between pages - see here: startlist
Output of the Decliknk Duo 2 seems to be smooth in the monitor, but when I play back the recorded file, the video play jerikly in the sections between pages.
Could You recommend some presets for the ADD FILE command, which will allow me to record file with fast motion correcty?
I have Decklink Duo 2, video-mode is set to 1080i5000, 6 core Xeon 2133/3,6 GHz, 32GB RAM, P2000.

Your video looked good to me (on the iPhone). I usually use the official clients settings for H264. That works for me.

For me, similar movement looks choppy even on screen consumer (cannot say anything about decklink, because I don’t have one available now), so I haven’t found any solution, but I would try setting video mode to 1080p5000 temporarily. In my setup, this resulted in slightly better output, but so slight it could just be coincidence.

Everything looks nice on the iPhone … :grinning:

So I have tryied the official client settings for H264:

-codec:v libx264 -flags:v +ilme+ildct -threads:v 4 -filter:v interlace -preset:v veryfast

The video looks just like the previous one (choppy between pages).
There is a warning mesage from ffmpeg about interlacing:

 Received message from ADD 2-14791 FILE "Output.mp4" -codec:v libx264 -flags:v +ilme+ildct -threads:v 4 -filter:v interlace -preset:v veryfast\r\n
[2020-07-08 09:43:53.014] [info]    ffmpeg[Output.mp4] Initialized.
[2020-07-08 09:43:53.014] [info]    Sent message to ADD OK\r\n
[2020-07-08 09:43:53.016] [warning] [ffmpeg] [libx264 @ 000001FE260DF800] interlace + weightp is not implemented
[2020-07-08 09:43:53.016] [warning] 
[2020-07-08 09:43:53.016] [info]    [ffmpeg] [libx264 @ 000001FE260DF800] using SAR=1/1
[2020-07-08 09:43:53.016] [info]    
[2020-07-08 09:43:53.016] [info]    [ffmpeg] [libx264 @ 000001FE260DF800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[2020-07-08 09:43:53.016] [info]    
[2020-07-08 09:43:53.020] [info]    [ffmpeg] [libx264 @ 000001FE260DF800] profile High 4:2:2, level 4.0, 4:2:2, 8-bit

Adding a parameter " -weightp:v 0" removes the warning messages, but the result is the same.