ProDOS files copied to a OS X box

[you@somehost.somedomain (Bart)]

The most recent addition to the Network from Heck is a Mac capable of OS X.  

As you may have gathered from my earlier scribblings, I seldom buy new 
computers when a rebuilt junker will suit and this is no exception.  I built 
this thing out of a Mac 8500 I found at Goodwill and a few this and that parts 
I had or  I purchased.
Well.. once I had this puppy up I looked at the 10 gig ATA drive on this beast 
and thought: Cool!  Now I have a  place to stash backups of my ProDOS disks!  
Well, so far direct communication 'twixt a OS X and a Apple IIgs type box has 
not been possible (except via Spectrum and Telnet.  That works quite well),  
but by adding a LC III (which makes an excellent monitor stand by the way ;) 
and Localtalk Bridge, I can now copy the ProDOS volumes via Localtalk to the 
LC, then with Ethernet and Appletalk to the OS X box.  And THIS brings me to 
the point of this:
Copying a ProDOS folder of say 30 megs from a LC (running System 7.1 with 
a PDS Dynaport 10BT ethernet card) to a OS X  machine  ( Mac 8500 with Sonnet 
G3/750 @450MHz 296megs/ VST ATA card  10 gig WD drive) done  from the OS X 
side takes like FOREVER!
A 30 meg "folder" on the LC to the OS X took about 15 minutes to copy. 
 
Another observation:  Once there, the ProDOS execurtables (Prodos, 
Basic.System etc) DO show the proper ProDOS icon, but when clicke, Classic 
starts then the OS X box pops an error message.
-Bart
Keeper of the Network from Heck.