I have 600k tmp files in a project and HTTrack never finishes them. Even if I
stop it after a few thousand files it never finishes, just hangs forever with
"Finishing pending transfers" with maxing out a CPU core but without any IO.
Even after a day it does nothing and the files aren't changing. Completely
stopping HTTrack also does nothing, it's just keep pegging a CPU core.

How can I use it to finalize files on the fly or in small chunks?