[TxMt] Opening large files

[Christian Bogen]

I just tried to open the recently published BoingBoing 2000-2005 
archive file (about 18 MB in size) in TM and it took 1 minute and 25 
seconds (!!) (I actually used a stopp watch when opening it a second 
time) with a spinning beach ball and the fan on my PB (12" 867 Mhz with 
640 MB RAM running 10.3.8) basically going berserk. Is that a beta 
problem (I'm using b5) or is this behaviour »normal«? (Just for the 
record: TW opened the same file in less than 10 seconds!)

Christian