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Will27540326c9gz
Known Participant
May 5, 2025

P: Premiere EXTREME lag with proxies V25.2.3

  • May 5, 2025
  • 19 replies
  • 3111 views
  • Issue - Newest version of Premiere Pro lags and doesn't work smoothly with proxies (as shown in the attached screen recordings).
  • Steps to reproduce - Create proxies, toggle them on, and observe how the timeline performance is slower than it should be.
  • Expected result - It should be way smoother, as shown in the screen recording (attached) of the older Premiere version.
  • Actual result -  Way slower than it should be, timeline performance is bad.
  • Adobe Premiere Pro version - Version 25.2.3
  • Operating system - Windows 11
  • GPU driver version (Windows only) - Nvidia Studio Driver 576.02
  • Video format - XAVC-SH 4k 59.94 fps from Sony FX3
  • Comparative information helps us understand more about when the issue occurs: 
    • Does it affect all projects or only some projects? It affects all projects.
    • Does it affect new projects? Yes.
    • When did the problem begin? Newest version of Premiere (version 25.2.3)

 

I've attached videos to show the issue.

 

P.S.: I also tried manually importing the proxies onto the timeline, and they work very smoothly. It's only when I attach them to the actual footage and toggle on the proxy icon where this issue occurs.

    19 replies

    W
    Will27540326c9gzAuthor
    Known Participant
    January 28, 2026

    UPDATE: this issue is fixed for me in CC 2026.

    C
    Charles38967273k665
    Inspiring
    July 17, 2025

    In Premeire Pro I am working with BCC+Beauty Studio, BCC+Denoise ML and BCC+Magic Sharp and get extreme lag with just one of them. Is this a poxy issue or what?

    IanB_360
    Community Manager
    IanB_360Community Manager
    Community Manager
    July 16, 2025

    Hi @Will27540326c9gz 
    This is a known issue that we are investigating. Once we have updates, we will notify the community on the forums. 

     

    Here are some suggested workarounds:

    Sequence scrubbing latency only occurs when you work with both the source and proxies linked to a sequence. You can work with just the proxies by importing them into the project and then making a new sequence from them. Or to avoid the latency in sequence scrubbing. You can offline your source media from the sequence linked to both source and proxy footage.
    Here to Help 
    Ian

    IanB_360
    Community Manager
    IanB_360Community Manager
    Community Manager
    July 7, 2025

    Hi @Will27540326c9gz 
    It has been flagged as a known issue, and a team is looking into it. Some users have suggested a potential workaround: unlink the source media and have the project linked to just the proxies. Could you let us know if the workaround is helpful for now?

     I will try to post any updates we receive, but feel free to message me directly, and I can always check in on the status. 

    Here to Help
    Ian

      W
      Will27540326c9gzAuthor
      Known Participant
      July 7, 2025

      Hi @IanB_360 any development on this bug and whether there's a fix? 

      W
      Will27540326c9gzAuthor
      Known Participant
      June 20, 2025

      @nice_ocean9572 Ian in this thread said that they were able to replicate the issue on their end, so they're looking into it as we speak. No fix yet, I had to downgrade to V25.1 to be able to work with proxies.

        N
        nice_ocean9572
        Participant
        June 20, 2025

        I have the same problem. Is there now a solution to the issue or any alternative workarounds? Kinda weird that not more people are running into this.

        W
        Will27540326c9gzAuthor
        Known Participant
        June 8, 2025

        @IanB_360 Thanks Ian, looking forward to seeing this fixed.

        S
        Sami Succar
        Inspiring
        June 8, 2025

        I’ve noticed a big change in how Premiere handles proxies during editing.

         

        In the past, no matter how many clips I had on the timeline—even thousands—once the proxies were attached, Premiere would fly through the timeline without any issues. It was smooth and fast.

         

        Lately though, it feels like Premiere is struggling to load the proxies. As shown in the attached video, there's a noticeable lag when scrubbing or jumping through the timeline. Once the clips "load," performance goes back to normal, but that initial delay wasn’t there before.

         

        The only way I’ve found to force the clips to load is to play the entire timeline at full speed a couple of times. But even then, the clips tend to “unload” again as soon as I start editing—making things choppy all over again.

         

        Nothing has changed on my end—same machine, same workflows. It used to be a breeze once proxies were ready.

         

        Has something changed in how Premiere handles proxies? Can someone explain what’s going on with this drop in performance?

         

         

        Microsoft Windows 11 Pro, 10.0.22631 Build 22631
        Intel(R) Core(TM) i9-10900X CPU @ 3.70GHz
        ROG STRIX X299-E GAMING II
        RAM 256 GB
        NVIDIA GeForce RTX 3090
        Samsung SSD 990 PRO 1TB
        Samsung SSD 870 EVO 4TB
        Adobe Premiere Pro Version 25.2.3 (Build 4)

          S
          Sami Succar
          Inspiring
          June 9, 2025

          @R Neil Haugen

          I’m definitely due for an upgrade. But the thing is, this drastic drop in performance happened almost overnight, which is why I’m treating it as a potential bug. My CPU and GPU didn’t suddenly age in the past month. This lag actually started showing up right before the latest Premiere update. I held off, hoping the next update would fix it, but unfortunately, the issue persisted.

           

          @Dani_V.

          I work with several camera formats, but my proxy workflow is almost always ProRes (Medium). Once a clip is “loaded” (not sure how else to describe it), playback and scrubbing are perfectly smooth. The issue is in that initial delay, where it takes about half a second or so before the clip becomes responsive. After that, everything behaves normally—until I start editing again and the lag returns.

           

          PS. I’ve been using Premiere since before it was “Pro,” and I’ve always been a strong advocate for it. I just wanted to clarify that I don’t post bug reports lightly. I usually take the time to troubleshoot and rule out all the usual suspects on my own—I handle large projects and can’t afford to wait around for community replies. Most of the time I get things fixed myself, but this one really feels like a regression in performance.

           

          Thanks again for taking the time to look into it, happy to provide any other details that might help.

            IanB_360
            Community Manager
            IanB_360Community Manager
            Community Manager
            June 2, 2025

            Hi @Will27540326c9gz 
            With the help of your files and my wonderful co workers from previous post I have been able to reproduce what you are seeing. I used an Nvidia machine with a RTX 4080 as well and the lag in playback is very noticeable when viewing proxies in the sequence playback window. We will get this information to the team as a bug report. 
            Here to Help
            Ian

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