Already a topic about this.
Yes, it is annoying having to download hundreds of add-ons you already have, just because someone wants to rename them, or put them in the wrong place, made a custom folder for them to show off their smart-ass brains, etc.
it is said this is supposed to be fixed in V9, if you guys are talking about what i think you're talking about. if it doesn't have to do with that, then i don't know why it's loading slower.