Adobe Lightroom Classic 2021 May 2026

Increase the Camera RAW Cache size in Preferences (at least 20GB-50GB recommended) to speed up image rendering.

Optimize your catalog regularly via File > Optimize Catalog to maintain speed, especially after heavy editing sessions. Adobe Lightroom Classic 2021

Octa-core CPU, 16GB+ RAM, dedicated GPU with 4GB+ VRAM, and fast SSD storage. Troubleshooting Increase the Camera RAW Cache size in Preferences

Continued optimization for GPU acceleration and improved brush/slider responsiveness. dedicated GPU with 4GB+ VRAM