Video and audio are slower in the editor than in the composite view

I've created some scenes as a composite shot. When I watch the composition everything looks perfect. As soon as I put the comp into my editor's timeline, video and audio is slow (lower voice, slower video). Never had this problem before. 
I am running the latest version of HitFilm Pro 2017.
Any help is very much appreciated.
Kind Regards, Oliver


  • Does your Project frame rate match your Composite Shot?

  • Do you have a lot of background programs running? I had the same problem. But after closing those programs, hitfilm was running as fast as a train! 

  • Hi guys
    Sorry for my late repsonse. The frame rate was the problem. Problem solved but new ones appeared...

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