Before I retired I ran a production line.
I had one girl training on a machine, she was learning it ok but was wasting a lot of time with the way she was working.
I came up to offer her tips on how to speed up, (After all we are production and numbers count) she informed me she hadn't found her comfort zone and until she did that was all the speed I was getting from her...
I helped her find her comfort zone....I do believe it was back on her couch in front of her TV watching her soap operas. That was her last day working for me.