I've actually recently launched a patreon that deals with anime interpolation, you can check it out here: link removed, look up enchancethis on patreon, NO DIRECT LINKS
The problem with stuff like SVP is that the algorithm isn't quite up to snuff, which admittedly is a bit weird considering it's been updated for a while now. But then again, this is a big ordeal and can't be solved by just "any" algorithm.
You generally have to look for machine learning based technology, wherein the programmer just gives the "tools" to the program, but the program itself needs to figure out how to do it (by studying varying good examples), and this "figuring-out" is done extensively.
But anyway, there are several out there, just do a google search and you should find some, though problem is that most of them require a hefty GPU, and even with a pretty good GPU, you'll still have to wait hours or days just for 1 episode.
You could still try one of them if you want, I think right now, from my testing, the best one for interpolation would be the "dain-app", it's even got a GUI! But goodluck trying to interpolate anything more than 720p with even a rtx 2080.