Hi, I couldn't find anything online to suggest if Avisynth is using multi-threaded operations when in use with SVP, just some snippets that I don't completely understand.
I had both Avisynth and Avisynth MT checked during the installation process of SVP 4 Pro, but am unsure if MT installed at all or is functioning as intended. I have one Avisynth folder located in the x86 directory and that's it.
I think it's worth pointing out I don't really know if the 'MT' version offers better performance during video playback or if it's even worth the hassle of checking if it's enabled.