I have tested with my very old pc.
It says:
37.6548 [opencl_profiling] spent 26.5298 seconds totally in command queue (with 0 events missing)
37.6644 [dev_process_export] pixel pipeline processing took 34.394 secs (61.123 CPU)
39.6749 [export_job] exported to `setubal_05.jpg'
[opencl_summary_statistics] device 'NVIDIA CUDA NVIDIA GeForce GT 1030' id=0: 1356 out of 1356 events were successful and 0 events lost. max event=1355
*** Warning, slots > 1024
Full log attached.
What does this mean: Warning, slots > 1024
Do you think the speed is ok, or is something misconfigured?