Bug ID: 409728
           Summary: Preview video lagging
           Product: kdenlive
           Version: unspecified
          Platform: MS Windows
                OS: MS Windows
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Video Display & Export
  Target Milestone: ---

System: Windows 10
CPU: i5-4300U
HP EliteBook Folio 1040 G1
Kdenlive: 19.04.02 installer exe

Some years ago I noticed that the preview video will lag some seconds when I
press play. I thought it was because of my old pc, but now I have a quiet good
laptop, and nothing changed. This bug is very annoying, almost doubling the
video cutting time.
I made a video about that:
In Adobe Premiere when the pointer moved in the timeline, it will start
rendering the preview, so if I wait some seconds before play, it will be
smooth. In kdenlive, I need to play some seconds, and after that will be good.
I don't understand why, but it's very nervous. (Proxy clips not helped)

Another bug (you can see in the video): when I click somewhere in the timeline,
the preview does not jump there.

There are some thinks, what I miss from kdenlive. These are not bugs, but I
don't know where to write.

So first, the community really needs a noise reducer. Audacity has, and it is
open source, can't you use it somehow? (I mean copy-paste it, or something :))
And I also miss the arrow shortcuts - in Premiere, when I press left/right, the
preview jumps one frame forward/backward.

A really love this project, sorry if I was not too technical, I hope I can help
somehow. Thank you, guys, you made the best video editor for me!

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