I've been disappointed with the performance of various tools over the past few weeks: first my Ryobi 18V impact, then my milwaukee m12 ratchet. I couldn't figure it out, I was getting much less power out of both than I should have been, and the tool would just uselessy rattle the sockets/bits around, not moving the fasteners.
Researching online, I began to see a reason why: I was using an adapter drive bit! My guess is that the links absorb too much of the impact energy and render it pretty much useless.
I'd like to do a video about this to warn other people who might be disappointed with their power tool performance: do not use adapter drives.
I would actually say that the more of your bit/socket that is solid, the more impact energy will be delivered to the fastener!