During my time working with EIO integration, one thing I’ve been looking at is load times. E17 takes far too long to start up, and this is something I am going to be actively working on.
One of the biggest culprits is the xsettings init:

Whoa there! 0.2s??? We can do better:

That’s more like it!
I then spent the entire rest of my day messing around with gadget loading. I’m pleased to report that, if you aren’t using the default theme with a digital clock, you’ll see your load times decrease by 1-2 seconds today. If you are…too bad, I guess? It’s bad theme that takes over a second to load on its own.
The downside of this is that I broke gadman a bit along the way. I’d advise against updating today if you plan to do a lot of reorganizing of desktop gadgets, specifically involving loading/unloading modules which have gadman gadgets active.