Camera Raw Cache Files

Question

I run an app on my Mac called CleanMyMac X by MacPaw software.  One of its features is to identify unneeeded cache files to free up space.  Running it has identified 1.88GB of Adobe Camera Raw 2 cache files that can be purged.  Does anyone know whether these cache files need to be kept for some reason?

TheDigitalDog · Answer

You can delete them yes but the result may be a slow down as explained here for ACR/LR:

https://helpx.adobe.com/lightroom-classic/kb/optimize-performance-lightroom.html

Every time you view or edit raw images in the Develop module, Lightroom generates up-to-date, high-quality previews. It uses the original image data as its foundation, and then updates the preview for any processing or adjustments that have been applied. The process is a little faster if the original image data is in the Camera Raw cache. Lightroom checks the cache for the original image data and can skip early stage processing if the image data is cached.

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