I agree with that

I still don't understand why RetroArch is not allowed.

I don't think that emulator is allowed. Even I used RetroArch with mGBA core, and it's not allowed!

Is Subsistence version allowed for speedrun on PS2? I don't have the Snake Eater version

I recorded with the record feature of Nestopia 1.40. I played my speedrun without any problems. But, when I play the video, something else happens. Mario stays on the map for at least 1 hour. So my speedrun is ruined.

I used the same emulator for my Super Mario Bros speedruns, and that works fine.

I tried to speedrun Super Mario Bros 3 warpless. After I beat Browser, I test my video. I saw that Mario stays in the map doing anything else, than I saw when I was playing. I don't know how to fix it.

Is that possible to use video capture with Windows 10 (Windows + G), or is that forbidden?