Is it only provisioning you are seeing the slowness with? You might want to check the health of your db server and make sure it isn't getting clobbered. If you didn't get the critical post SP1 vulscan patch applied to all your machines, it will cause some pretty good DB slowness. That is how I found out we had the problem... working with provisioning templates. ;-)
Only provisioning. It seems to happen when we introduce a lot of actions under the System Configuration stage. When you apply it takes a little bit longer to save.
I have installed the vulscan critical patch.
When you say longer, can you be more precise? How long is it talking to save the template? Could you export and attach a copy of your template?