Extended initial startup time

[LennyN95]

Running idc after installation takes around 14 seconds to start the first time following a fresh install:

idc  2.14s user 2.18s system 30% cpu 13.934 total

Since the installation includes idc-index-data, which already takes a considerable amount of time to download, I would expect all required data to be loaded and the cli to respond immediately.

• What causes the long initial loading time?
• If this is not a bug, I suggest adding a prompt to inform the user that the first execution may take some time.