This is a relatively fast computer running arch linux on two disks. one has xfce and one has KDE.
KDE seems very fast apart from one glitch.
When I start dolphin, it freezes for 20 to 30 seconds before I can click on any folder.
The same happens in the filepicker in any application.
I presume it is scanning folders or something.
There is no delay in the gtk filepicker.
It's a 7700 intel CPU with 16GB ram and a 1050ti nvidia card.
Any idea how I can tell what is happening?
Arch linux has plasma 5.17.3 and kf5 5.64

I did some investigation and this appears to be due to a configured smb.conf.
Removing that file makes dolphin start instantly.
However, it also means that I cannot host smb shares.
This appears to be due to that kio modules are started from scratch (good idea actually) every time a kio is used. Am I understanding correctly?