C'est quoi la chanson??
Did you slowdown with the ingame button or just edited it in w.e program you use?
I need your rendering settings very badly. Youtube butchered my quality.
Well twixtor will warp your clip in most cases, so I try not to use it. For this I just played the demo at 0.5 speed, recorded at 1080p/60fps, did some minor color correction and rendered to a high bitrate mp4.