Workflow speed slowing down when AI-denoise is activated

[Beauteous_discoverer5DE5]

Since I have updated to LRc 14.4, 14.5 as well as 15.0.1 my CPU (Intel i7 8900, 32 GB RAM, Win11) is running at 50 up to 100% load as soon as I switch from library to development mode, but only if I have activated AI-denoise function. Even when denoise is finished, the CPU is still running at about 50% constantly while the GPU is at 2-3% (Nvidia GTX 1070, 8 GB VRAM). Adobe recommends to apply AI-denoise at first step before all other development work. But when I follow this, my workflow from photo to photo is slowing down dramatically, impossible to work quickly. The only work-around I found is applying AI denoise as final step of my workflow. What could be the reason for this? Could you please help me to solve this problem?

[DdeGannes]

@Beauteous_discoverer5DE5 , do you have the option "automatically write metadata to XMP " turned on?

[johnrellis]

I addition to DdeGannes' question, does this happen in LR 15.0.1 in particular?

[Beauteous_discoverer5DE5]

Yes, the problem exists since LRc 14.4. and also in LRc 15.0.1.

[Ian Lyons]

Can you also answer the question asked by DdeGannes re XMP?

[AxelMatt]

Is your system up-to-date? Do you have installed all recent updates and patches for the operating system and the device drivers, especially the graphic driver. Please make also sure that you have installed the Studio version and not the Game Ready version of your NVidia driver.

Please provide a copy of your 'System Info'. This can be get from the Photoshop menu item Help > System Info. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.