Hi @ralphlouzon
Thanks for reaching out. Looking at your screenshot, I can see that you’ve selected the Custom option for GPU usage and enabled all available GPU options. This doesn’t mean GPU acceleration is partially enabled—in fact, it means Lightroom Classic is being forced to use the GPU for all supported operations. When GPU is set to Auto, Lightroom Classic decides how and where to use the GPU based on your system’s available RAM, GPU capability, drivers, and overall hardware resources. In this mode, Lightroom may use the GPU only for specific tasks where it’s expected to improve performance.
When you switch GPU to Custom and enable all options, you are essentially forcing Lightroom to use the GPU for all supported features, even in scenarios where the CPU might actually perform better. On some systems, this improves performance, but on others, it can introduce delays.
This is why behavior can vary so much between systems. Performance depends on several factors, including:
GPU model and driver
Operating system version
Storage configuration (SSD vs HDD, internal vs external)
Monitor resolution and scaling
Because every system has a different hardware combination, Auto is kept as the default setting. Adobe’s recommendation is a general guideline and may not deliver the best results in every case. To understand what’s happening on your specific setup and investigate further, we’ll need a bit more detail. Please share your System Info from Lightroom Classic. Go to Help > System Info, copy the information and paste it here.
Regards,
Srishti
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