KDEconnect doesn't work "well"

Debian 12, KDE on a laptop.
Debian 12, KDE on a desktop.
Android on a Pixel 6A.

KDEconnect doesn’t work very well :

  • Sometimes, I type SMS (on laptop for example) which are not send in QUIK (SMS app).
  • I can wait like 12 minutes for my laptop to “see” my desktop.
  • Sometimes, when I send a big file or more than one file, the app crashes (on desktop/laptop) or I don’t receive all the files…(the operation is “pending”).
  • The paperclip is not shared everytime (and it’s not clear when it is or when it is not)

Is the problem from my box ? Is there a configuration I can do ? Thanks.