o.k., then sunbeam's machine is the best test case, if P8 GUI is slow on the version installed on internal HD of machine under tiger, but if P8 GUI is fast on the version installed on external HD of machine under leopard.  if true, is the version installed on internal HD of machine under tiger trying to access remote/external runtimes, and does the version installed on external HD of machine under leopard have various items added to its runtime and is not trying to access remote/external runtimes?

p.s. pirated snow leopard versions have been avail. fr some time, but as usual would advise against downloading nor installing any of them.