SUMMARY I have folders with lots of images. My system is a modern 8core/16thread Ryzen with NVMe storage and 32GB of RAM. When opening a folder in "thumbail view" for the first time, Dolphin will start thumbnail generation. Looking at the "top" output, I can only see one thumbnail.so process while most of the CPU cores are idle. Is it possible to parallelize the thumbnail generation to make it faster? E.g. when opening a folder with 100 images, why not divide them and start X threads of the thumbnail generator in parallel? Number of threads could be calculated based on number of cores/threads and/or made configurable to fit user needs. STEPS TO REPRODUCE 1. Open folder with logs of images in Dolphin in icon/thumbnail mode 2. Look at top/ps -> only one thumbnail.so process processing sequentially the directory, other cpu cores idle. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Operating System: Gentoo Linux KDE Plasma Version: 5.19.5 KDE Frameworks Version: 5.74.0 Qt Version: 5.15.1 Kernel Version: 5.9.11 OS Type: 64-bit Processors: 16 × AMD Ryzen 7 3700X 8-Core Processor Memory: 31.4 GiB of RAM Graphics Processor: AMD Radeon RX 5700 XT ADDITIONAL INFORMATION