SWF to video conveting with vector graphics upscaling

[Lirk]

What is the most useful method for now to convert vector SWF with upscaling to video?

What I tried:
The most useful tool is "Swivel - Flash to Video". But it has some inconveniences, such as: no interactive mode in range selection mode, it only present in recording mode and in this mode need quickly to click recording button, when playback is starting, would be better availability of autostart recording option; batch mode available from console without official documented parameters and without interactive mode; there are no others audio codecs, except mp3, aac (ffmpeg version with bad quality encoding), also no advanced parameters for video codecs. And this tool is outdated from 2013.
Another method is using capture screen, but this method is not for old hardware and can be convenient only with newer hardware for using recording without dropping frames on another virtual screen.
Also can be used FFDec tool for upscaling and conversion SWF to uncompressed video, but without sound, because of sounds can be in separated files, so they can be converted with 3d-party video converter, such as xilisoft video converter to audio format and then can be muxed with compressed video.
For a long time was some similar tools, such as: "Sothink SWF to Video Converter", "iTinySoft Magic Swf2Avi" (but 5.x version, before rebranding).

[Lirk]

Also, good variant without dropping frames is improting to Adobe After Effects, but it loads without sound. Sound can be converted by "Xilisoft Video Converter", it can convert full length of sound track, while FFmpeg-based converters can convert only first audio track.
FFDec "JPEXS Free Flash Decompiler" converts SWF without sound, but as it turned out, it also uses some excess interactions (tries to activate all available elements in SWF), which lead to wrong playback.
"Sothink SWF to Video Converter" converts with dropped frames, even with old version of Flash Player ActiveX plugin (version 8.x for that time) and it has all problems of "Swivel", except of availability autostart recording option.
It was revealed, that older version of "iTinySoft StudioMagic Swf2Avi version 3.12" (available on web.archive.org) working with installed Flash Player ActiveX plugin 8.x (available on archive.org, with the later version, e.g. 9.x, it converts with dropping frames) very well and this tool has some advantages over "Swivel", such as right autoplayback, properly interaction and batch mode. The latest version of Swf2Avi converts with dropped frames even with older Flash Player plugin (8.x). It converts smoothly with it integrated decoder, but with artifactual distortions.
SWF can be imported into Adobe Animate (Adobe Flash), but also without sound and it much harder to adjust to the required dimensions, than in After Effects, because of big performance drop, when selecting all frames and all separated objects in Adobe Animate. But in this case SWF can be converted with real frame rate increase from 15-20 to 30-60 fps (in After Effects it can be done worse with interpolation by Pixel Motion option with typical artifacts).

May be you know better methods?