Slowdown in video

For some reason when I try to put effects like muzzle flashes, the video starts to stutter like every .80 seconds. Is there a reason it's doing this and is there anything I can do to fix it?


  • RobinRobin Website User, HitFilm Beta Tester Posts: 1,671 Enthusiast
    Muzzle flashes, particles sims and similar stuff are too heavy for many computers to be rendered in realtime, so your preview will stutter. When you render the video, the stuttering will be gone.
  • AxelWilkinsonAxelWilkinson Staff Administrator, Imerge Beta Tester, HitFilm Beta Tester Posts: 5,240 Staff
    Its also quite possible that the format your video is in could be a factor. What format and codec did you choose to use for editing?
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