1.5 slower than 1.1.2?

Question

I'm kind of disappointed with 1.5. I definitely like the ability to reference images in place and the integration with other Apple apps is nice. However, the main thing I do with Aperture is editing - i.e., sorting through a shoot, deciding what to keep - and in this area, I think 1.5 is a step backwards. With 1.1.2, 1Ds Mark II images took about 2 seconds to display at high quality. That's on a 3.0 GHz Mac Pro with the ATI card and was a great boost from the 4 seconds for the same images on a Quad G5. However, in 1.5, those images take about 3 seconds to preview. It sounds like a small difference but it's noticable and odd given that Aperture's now building previews. Lightroom is much, much better in this area: previews build much faster and images display much quicker.
Has anyone else noticed this?
Regards
fh

Answer 1

Yes on my Quad G5. I found that Previews were building every time I touched an adjustment tool. Selecting the project and then deselecting "Maintain Previews" from the Project Gear menu was step 1. This helped but didn't solve.
I quit and restarted. No joy. Log out/log in. Nada.
There is a firefight in another thread about permissions, but in frustration, I ran a Disk Utility/Repair Permissions and it fixed a RW permission on secure.log. My thought is that Aperture might have been timing out writing to this file. Whether or no, Aperture sprang back into life. I ran out of time to validate but I'd say it was at least as fast as 1.1.2.