It will take times, and ur LO is only a year old, its the phase where she will eat while running around.
To me its normal, as they are active at this age to explore and being curious, once they understand to sit still and eat, it will go as naturally as it is. Its fine for her to walk around as long as she eats. If otherwise then need a strategy of having toys that she likes to bring over on the table/chair.😊
My 3rd LO , a 2 year old will only sit in high chair when she saw the food that she likes or favourite otherwise no dinner for her. 🤭❤️