Thunar takes 20 seconds to open windows in Xubuntu 20.04. I had Xubuntu 18.04 installed on the same machine and Thunar opened windows with no delay. I tried changing /usr/share/gvfs/mounts/network.mount/AutoMount=true to AutoMount=false but it didn't solve the problem. Noticing that as root there is no delay opening and closing windows with Thunar, I changed the permisions to the home folder, but it didn't help either. Any solution please?
Edit: The above mentioned problem ocurred in an old laptop with a Pentium Dual-Core CPU T4200. After that I installed Xubuntu in a (also old) desktop machine with a Intel Core I3 CPU, and Thunar worked well. Another difference: while in the laptop when pressing the link in Thunar side panel to Search the Net I get an error message saying the specified location is not supported, in the desktop machine there is not such error message.