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Favorites (Preferences / Favorites and Recent / Favorites List)
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Aliases (Preferences / Favorites and Recent / Folder Aliases)
Those let you type something short into the file display or path field. For example, if I type /d it takes me to \\server\downloads
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Toolbar buttons which run commands like
Go \\server\share\path( How to use buttons and scripts from this forum )
Aliases will definitely not cause any delays (except when actually used). The others could still trigger a delay, I think, but are less likely to than the tree.
(This is from memory, which is why I'm not completely sure. It's actually quite hard to test things to check which of the options cause delays, since it doesn't happen for random server names, only ones that have existed in the past, and it generally only happens once or once in a while, with the failure then being cached and happening quickly most of the time.)