Performance when using external state

[lordi]

I implement a simple handler that does not mutate the original state, unlike the bundled handler.

With this handler I experience bad performance. Do you see any way to have the same performance as FlowChartWithState but with immutable, external state or is this limitation foundamental in nature?

For reference, here is my handler using ramda:

const [ chart, setChart ] = React.useState<IChart>(initialChart);
const nodePositionL = (nodeId: string) => R.lensPath(['nodes', nodeId, 'position']) 
const onDragNode = ({ id, data }) => { setChart(R.set(nodePositionL(id), {x: data.x, y: data.y}, chart)) },      
...                             

Edit: And BTW congrats on the great library, I'm watching the progress for a year now :+1:

[lordi]

My bad, performance seems ok when developer tools are closed.