Same here. Installed VLC 3.0.1
The read/write rights are all there. I copied over the dll and renamed it (deleted the .30 ofc) and now there is the Vapoursynth filter yes. What then? With or without the mark SVP doesnt kick in. The python stuff is already there as MPV and so on works.
Maybe that 3.0.1 build isnt working
Edit: Ok had to turn off hardware acceleration. Now SVP kicks in. BUT doesnt work with 90 or 120fps...only with 60 and why is it stuttering with 0.5x speed? Smooth for 1-2 seconds then big stutter and smooth again....apparently due to turned off hardware acceleration?! Its all pretty useless then though
Edit 2: 120fps working if option "force the exact value" is turned off. Still stuttershit with only 50% speed.....is VLC that bad or is there a trick? There has to be a way to make SVP working with hardware acceleration on or its a stuttermess, at least with 50% speed or below.....