After upgrading to Lightroom Classic 11, generating Smart Previes & 1:1 previews are ridiculous slow. LR uses only 2-4 cores becoming unresponsible! All other cores are not used. RAW files, catalog files, system and LR Catalog placed on SSD's. This performance is a joke 😞
Auto sync has no impact for creating previews. One task - generate Smart Previews utlilize 100% CPU power. Another one task - generate 1:1 previews also utilize 100% CPU. These two task running simultanously utlize only 20% CPU and take much longer time than normal.