09-28-2022, 07:14 AM
Rotating a slightly larger image (8500x5700) takes 12 seconds n my still decent PC. Make sure that you have Preferences ➤ System resources ➤ Resource consumption ➤ Tile cache size set to a significant proportion of your RAM (10-12GB on your system), otherwise Gimp will self-limit its RAM usage and swap to disk.
If this doesn't solve it, please report CPU usage, RAM usage and disk I/O during the wait.
If this doesn't solve it, please report CPU usage, RAM usage and disk I/O during the wait.