Topic: SVP can only make certain videos 60 fps

I have SVP 3.1.7 and use it to watch anime in 60 fps. Downloading anime can end up being terrible because of how long it takes and how bad the quality is, so i decided to just record anime off of crunchyroll using obs. I record the anime with obs in 60 fps and take the file and drag it into mpc. it detects and renders the video, but i can physically see that it isn't in 60 fps. When i download anime from online, yes it is in bad quality, but it renders 60 fps. Please help