Cubase 15 lagging my whole computer down

Discussion in 'Cubase / Nuendo' started by Icesnes, May 6, 2026.

  1. quadcore64

    quadcore64 Audiosexual

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    Have you seen/read this guide from Steinberg?
    Windows: How to set up and optimize a Digital Audio Workstation
    or
    How I Resolved Cubase 15 Pro STILL Stalling and Crashing on a New PC Build

    Start with turning off Hyper-threading & C-States in system BIOS. Then perform Windows tweaks & driver updates as required.

     
  2. wizardmoon2

    wizardmoon2 Ultrasonic

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    Just so you know it's possible to rent-to-own it from Splice for 16.99 if I remember correctly.
     
  3. Neurolepticer

    Neurolepticer Kapellmeister

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    If you say Cubase is resource-intensive, then you’ve never really used it, let alone optimized it properly.
    Anyone who really knows Cubase knows how to set up and optimize this DAW properly.
    Cubase is extremely resource-efficient.
    Most of the time, the problem is sitting right in front of the monitor.
     
  4. clone

    clone Audiosexual

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    All of the time, this kind of comment is just a tell.

    All that first guy has to say is, I have Cubase installed right now. Show me these settings you think I need to optimize so that Cubase will run as smoothly, efficiently, (whatever) aspect better, than the Reaper I have installed on the identical machine....

    When you can't, your argument is shot to shit. Which is the ultimate end of that discussion, because it is Fantasyland.

    Install Cubase on the same machine.Match buffer size, sample rate, driver type.
    Disable identical background processes. Load the same project structure. Use equivalent plugin chains. Then demonstrate where Cubase becomes “extremely resource-efficient” relative to Reaper in that exact setup.

    Aren't you the same guy who suggested a $39.00 Audioloom clipper plugin to a guy who just dropped a couple thousand dollars on a 500 series analog processing chain? That is a good suggestion, also Fantasyland.
     
    Last edited: Jun 7, 2026 at 6:25 AM
  5. Neurolepticer

    Neurolepticer Kapellmeister

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    1) Go to “Studio” > “Studio Settings.” Then, under “Audio System,” select the correct “ASIO driver.” In my opinion, the “Steinberg Built-in ASIO Driver” and “FLEX - ASIO” are the best. With the right settings, Flex outperforms the Steinberg ASIO driver.
    Then, under “Advanced Options,” enable 64-bit float mode. (Don’t forget to enable ASIO Guard.) I then set the ASIO Guard setting to “Normal” or ‘High’; you’ll have to see what works best. To do this, the setting “Enable Steinberg’s optimized audio performance mode” should be enabled. This activates a “Windows Power Plan” created by Steinberg. Then click “OK” and restart Cubase (don’t forget to close all windows). (And enable multiprocessor support in Cubase if it isn't already enabled)

    2) Next, in the current project, go to the “VST Plugin Manager,” which can be found in the top menu bar under “Studio.” You will now see the active plugins: “VST Effects” and “VST Instruments.” Now click on a “Plugin”; the “Plugin Information” section at the bottom left will show whether “Asio-Guard” is enabled FOR THIS plugin or not—by default, it is enabled. Now you can click the small button to disable “Asio-Guard” ONLY FOR THIS plugin. Sometimes it may be better to disable “Asio-Guard” for a specific plugin; you’ll have to see what works better. For programs that load their samples from the hard drive (NI Kontakt or Battery), it is recommended to disable Asio-Guard. You’ll have to see what works better.

    3) For Native Instruments plugins such as “KONTAKT” or “BATTERY,” you should go to the plugin settings under... For “Battery,” go to “Edit” > “Preferences,” and then under “Engine,” disable “Multiprocessor Support.” For “KONTAKT,” go to ‘File’ > “Options,” and then under “Engine.”

    4) Uninstall all NVIDIA drivers(Then use “Driver Store Explorer” to remove any remaining files, if there are any) and restart the system. Now use “NVCleanstall” to perform a custom driver installation. The standard driver installation via the NVIDIA Setup installs many containers and telemetry components that cause latency; “HDCP” is also installed by default, which also causes latency. And latency is poison for the DAW. You can eliminate all these problems with “NVCleanstall” and install only what is really necessary.

    Sample images
    [​IMG]
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    [​IMG]
    [​IMG]

    All done—Cubase is optimized, and so are the latencies.
    (I'm using a translator)
     
    Last edited: Jun 8, 2026 at 11:57 PM
  6. Plendix

    Plendix Rock Star

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    Sooo, I have a wild guess why I don't have that option (and I was looking in the right spot, it's just not there):
    Is it an nvidia thing? Because all screenshots with that option show nvidia cards.
    I'm on AMD gfx cards, so maybe that's why I'm not affected by that bug?
    People say that nvidia is a little better for gaming, but creates more traffic on the pci bus.
    And because I'm on RME PCIe cards, I preferred AMD (well, plus the price tag, they are cheaper).
     
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