Comment by lukasstoecklein

9 hours ago

I don't understand why people say there is an overhead. Press 'I' for insert mode gives you the same behavior as non-vim, so your immediately at the same efficiency. What am I missing?

The overhead exists when a novice is trying to use Vim the way it is intended to be used in order to learn. Using insert mode to get the same behavior as non-vim and avoid normal mode is, in my opinion, bad learning practice.