I had the same initial reaction to 2) (incsearch) at first after having to work in a shared environment with it enabled. After a little while getting used to it

I had the same initial reaction to 2) (incsearch) at first after having to work in a shared environment with it enabled. After a little while getting used to it I found it actually sped up my workflow quite a bit! YMMV, but you may find it worth the time to leave it on a little longer and see if it works for you.