FCPX and speed problems with new external hard drive

Hi All,
I have just bought a new Thunderbolt drive. I created a very large disk image partition to separate my fcpx files from other iTunes type files - but strangely FCPX is now operating slower than it ever did when I was using 800 firewire.
Any thoughts on why this might be the case? I have encryption on the disk image (but it is the minimum amount).
Also - FCPX hangs regularly (when I go to Finder it states that the app is not responding) but then after 1 min, is back. The whole environment is now less stable than when i was simply using a 800 firewire drive with a disk image.
All OS and FCPX is up to date.
Any suggestions/comments appreciated.
Best,
R

Hi Jim,
Thanks for the tip. I ran the app (quite a nifty app at that) and my speed tests for the main drive are Read 133 mbps and Write 137 mbps. Which is not as high as I would expect for a Thunderbolt drive - does this sound right?
Anyhow, I ran the same test on the Disk Image. And something is definitely wrong. Read 1.4 mbps and Write 1.5 mbps
Now I am scratching my head about this hard drive. It is a single partition - nothing fancy. Only this large Disk Image that is for media. Any suggestions greatly appreciated.
Best,
R

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Hey, I'm new (not to Apple just to these forums) and I find this section very helpful.
Anyways, I have a very... odd situation. I just got my new Macbook Pro today, and I've had a 12" Powerbook G4 since it first came out. Alright, with that out of the way, here is the problem. I have 2 external hard drives, both being a Western Digital. Now, I hook up this Macbook up to HD "A" and it works. I hook up the Powerbook up to the same HD and it fails to recognize it.
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Message was edited by: Tom Pfister1
Message was edited by: Tom Pfister1

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