I believe I have found a bug with the extrafanart feature of this skin.
When browsing my video shares via file mode (Vides>Files) there is considerable lag whenever selecting a share that I have set content for. This is only an issue if the extrafanart option is enabled via skin settings.
I get the following in the xbmc.log file.
04:01:12 T:1276 ERROR: Previous line repeats 2 times.
04:01:12 T:1276 ERROR: XFILE::CDirectory::GetDirectory - Error getting /extrafanart/
04:01:37 T:1276 ERROR: Couldn't connect to \\extrafanart, error code 53
04:01:37 T:1276 ERROR: WnetOpenEnum failed with error 1203
04:01:37 T:1276 ERROR: XFILE::CDirectory::GetDirectory - Error getting smb://extrafanart/
04:01:37 T:1276 ERROR: Control 1 in window 10099 has been asked to focus, but it can't
Tested with Aeon Nox skin to make sure it was not an XBMC issue. Aeon Nox (with extrafanart enabled) did not suffer from this same issue. Read the linked post for a bit more information.