When using :ensure option hosts are connected to for every package

[cjohansson]

Hello,

I have about 50 packages in my use-package configuration and I use the ensure option, my start-up time is very slow, several minutes because use-package connects to elpa.gnu.org and elpa.nongnu.org for every package.

Would it not be possible to just connect to a host once per startup and store every available package and version in some kind of variable?