This is an additional challenge. My ex while we were travelling in Tokyo asked me on the first day why people understand me there and not her. Her English is good but, too good. Whe she was hearing me speak to them, she was filling in all the stuff I was leaving out in her head. When sh spoke to them, she spoke like she always does and it was too difficult. It isn't easy for people who have spent a lot of time learning a language to 'dumb it down' and when they do, they often sound condescending.