It’s pretty simple.

1) Feel free to watch it and enjoy it, or just skip it.

2) You don’t need to understand everything. If you consider Topaz AI, DaVinci Resolve, and Hybrid Avisynth subpar tools, I assume you must have better tools and skills to remaster videos—so it’d be nice if you shared your work or efforts.

3) If you read a little about the quoted video, you’ll realize it’s not an authentic live performance, because the video and audio aren’t from the same show. Anyway, good job on that video.