EDIT, the whole program is working far better, quicker and how it should be running, without the network on. Seems to me the network is dragging everything down with it. This is a very stable version without the network on.
I've always found RB more "fluid" or "smoother" or whatever the right word is without the network turned on. It does struggle to download 1000+ aircraft, process them, put them on the map, etc. For 5-10 seconds it struggles a bit. Although I've never seen significant errors, just "sluggishness".
That's not a problem when you're just watching aircraft, etc. So, I normally turn the network off when using menus, etc.
I wish Airnav would reconsider my idea of giving the end-user the option of only downloading the aircraft that are in view on the map, to reduce the download and processing overheads. Maybe something for v4.
On a positive note, I find this v3.05 stable and, in my opinion, ready for public beta.