Should AccuRev client be installed on every machine with a workspace?

It's not technically necessary, workspaces can be on a shared drive, and I can create one on a machine that doesn't have AccuRev client software installed.
However, I'm wondering if that hurts performance significantly.

In other words, if I'm in AccuRev on on machine A and want to update a workspace on machine B, does it help performance if AccuRev client is installed on machine B too?

Thanks in advance for any thoughts.

I'm concerned specifically with AccuRev 6.2.2, quite old, but it's what we have, and I suspect the answer may be the same for most or all releases.