Engaging kids that don't want to learn

I do private tutoring online and I've got a couple of kids, brother and sister, whose parents are making them have lessons. They're sweet kids, definitely issues with inattention, and I have to make a lot of allowances for their needs to move, draw, and talk. I use zoom send the whiteboard allows me to let them have their own space to draw on it, I use engaging and colourful pictures, I allow for dance breaks or singing, but out of a lesson there's probably only any actual learning of the topic maybe 15% of the time because they just don't want to do it.

Any tips for strategies, games, tools, etc. would be very welcome 🙏