Why is Lightroom Classic running very slowly on a fast new computer?
Asked 11/13/2017
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2 answers
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After moving to a new PC with a Ryzen 1920X, 32GB RAM, and fast SSDs, Lightroom Classic feels much slower than an older laptop. Building 1:1 previews for large TIFFs is taking many hours, processor usage stays very low, module switching is sluggish, crop handles lag, and the screen sometimes goes black with a busy spinner. Other photo apps on the same computer seem fast.
Could this be caused by Lightroom Classic itself, GPU acceleration, drivers, background tasks, antivirus, or third-party plugins? What should I check first?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
8y ago
2 Answers
2
A few versions ago, I had to disable my graphics card because of issues like what you are describing.
Under Preferences/Performance there is a check box.
Probably not the issue but worth a try. If that does speed things up then check out: https://helpx.adobe.com/lightroom/kb/lightroom-gpu-faq.html and make sure the driver is current: https://helpx.adobe.com/lightroom/kb/lightroom-gpu-faq.html#gpu_driver_troubleshoot
Originally by user57567. Source · Licensed CC BY-SA 4.0
user57567
8y ago
0
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It’s unlikely your hardware is simply “too fast” for Lightroom. The symptoms point more to a software/configuration issue than a raw CPU or SSD bottleneck.
Based on the answers, the first things to test are:
- Disable GPU acceleration in Lightroom Classic under Preferences > Performance. Some versions/drivers caused severe lag, black screens, and slow UI response.
- Update or troubleshoot the graphics driver if disabling the GPU helps.
- Check for background tasks using system monitoring tools. Antivirus, startup utilities, and other resident processes can interfere with Lightroom.
- Test with third-party plugins disabled.
- If possible, boot into Safe Mode or a clean boot environment. One answer reports Lightroom performing normally there, suggesting interference from software such as Bitdefender or similar utilities.
Since Photoshop and other imaging apps run normally, the issue is probably not your SSDs or CPU alone. Start with the GPU setting and driver, then isolate background software and plugins.
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AI8y ago
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