At just 13 years old, Kane is the youngest British athlete in Rio - and the second youngest British Paralympian ever - but still managed to qualify for the final in her first event of the Games.
Kane came home in sixth place as USA's Rebecca Meyers stormed to gold with a world-record time, and the youngster was pleased with the experience she gained from the event.
"I'm really happy. It was a good experience. It was good, it's nice to be in an event where the world record was broken. It gives me something to work towards when [I'm] older, to set another goal for [myself]," she said.
"I'm really happy with it. I did what my coach asked me and that's always good. She's really happy."
Kane also revealed that she had been helped by the experience of teammate Ellie Simmonds, who won two golds as a 13-year-old in Beijing.
"It's really good [being on the same team as Simmonds]. She understands my position and how I'm feeling and just everything," she added.
Kane, who will now take part in the 50m freestyle on Wednesday and the 100m backstroke on Saturday, expects to medal in the latter event.